Indoor unit of air conditioner

Abstract

The utility model provides an air conditioner indoor unit which comprises a first air channel, an evaporator and an airflow cooling device, the evaporator and the airflow cooling device are arranged in the first air channel, and the airflow cooling device is provided with a condensate water inlet for condensate water to enter, an airflow inlet for airflow to enter and an airflow outlet for airflow to flow out. The condensate water inlet is used for receiving condensate water generated on the evaporator. The airflow cooling device is configured to enable water entering the airflow cooling device to exchange heat with airflow entering the airflow cooling device. Due to the fact that the temperature of the condensate water is low, the condensate water in the airflow cooling device can conduct heat exchange on the indoor air or the outdoor air, the temperature of the indoor air or the outdoor air is lowered, and preferably, the airflow is fresh air. The fresh air with the reduced temperature passes through the evaporator, the heat exchange efficiency of the evaporator can be affected as little as possible, the heat exchange efficiency of the indoor unit of the air conditioner is improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an indoor unit of an air conditioner. Background Art

[0002] Nowadays, with the continuous improvement of the demand for home environment, more and more air conditioners with fresh air function are available on the market. The main function of the fresh air function of the air conditioner is to realize the circulation between indoor air and outdoor air, which has the effect of refreshing indoor air. However, problems also arise during the use of the fresh air function of the air conditioner. For example, in the summer when the outdoor temperature is high, the outdoor high temperature fresh air is introduced into the air duct of the indoor unit of the air conditioner, and the heat exchanger of the indoor unit of the air conditioner is used to exchange heat for the fresh air, so that the heat exchanger exchanges heat for the indoor air and the outdoor fresh air at the same time, which reduces the overall heat exchange efficiency and affects the user experience. Utility Model Content

[0003] In view of the above-mentioned problems, the present utility model is proposed to provide an air conditioner indoor unit that overcomes the above-mentioned problems or at least partially solves the above-mentioned problems, and can solve the problem that the heat exchange efficiency of the air conditioner indoor unit decreases after the introduction of outdoor fresh air, thereby achieving the effect of improving the heat exchange efficiency of the air conditioner indoor unit and enhancing the user experience.

[0004] Specifically, the utility model provides an indoor unit of an air conditioner, comprising a first air duct and an evaporator arranged in the first air duct, and further comprising:

[0005] An air flow cooling device, the air flow cooling device having a condensation water inlet for condensation water to enter, an air flow inlet for air flow to enter, and an air flow outlet for air flow to flow out; the condensation water inlet is used to receive the condensation water generated on the evaporator; the air flow cooling device is configured to allow water entering therein to exchange heat with the air flow entering therein.

[0006] Optionally, the airflow cooling device further has a condensed water outlet to allow water in the airflow cooling device to flow out;

[0007] A first valve is provided at the condensate outlet;

[0008] The air conditioner indoor unit further comprises a water quantity detection device configured to detect the water quantity in the air flow cooling device to control the opening and closing of the first valve according to the water quantity; the water quantity detection device is a water level detection device or a quality detection device; or,

[0009] The air conditioner indoor unit further comprises a water temperature detection device configured to detect the temperature of water in the air flow cooling device so as to control the opening and closing of the first valve according to the temperature.

[0010] Optionally, the airflow cooling device includes a cooling box and a partition structure arranged in the cooling box, the partition structure divides the space in the cooling box into an airflow space and a water space, the airflow inlet and the airflow outlet are connected to the airflow space, and the condensed water inlet is connected to the water space.

[0011] Optionally, the spacing structure is an airflow tube, and the airflow tube is arranged in the cooling box, so that the space inside the airflow tube is an airflow space, and the space outside the airflow tube in the cooling box is a water space.

[0012] Optionally, the airflow tube is bent and extended, and laid flat on the bottom of the cooling box; or

[0013] There are a plurality of airflow pipes, which are arranged in parallel and at intervals in the cooling box.

[0014] Optionally, the cooling box is a water collecting tank or the cooling box is connected to a water collecting tank;

[0015] The air conditioner indoor unit further comprises a water pump and a functional module, wherein the water pump is configured to pump the water in the cooling box into the functional module; the functional module is a humidification module and / or a cleaning module.

[0016] Optionally, the air conditioner indoor unit further comprises a condensed water collecting device, the condensed water collecting device is configured to receive the condensed water generated on the evaporator; the condensed water collecting device is communicated with the condensed water inlet; the condensed water collecting device is a water receiving tray, the bottom wall of the water receiving tray is the top wall of the cooling box, and the condensed water inlet is arranged on the top wall of the cooling box; or,

[0017] The cooling box is a box body with an opening facing upward, which is arranged on the lower side of the evaporator, and the opening of the box body is the condensed water inlet; or, the cooling box is a water receiving tray.

[0018] Optionally, the air conditioner indoor unit further comprises a condensed water collecting device, wherein the condensed water collecting device is configured to receive condensed water generated on the evaporator; the condensed water collecting device is a water receiving tray, and the condensed water collecting device has a first outlet and a second outlet.

[0019] The first outlet is communicated with the condensate inlet, and the second outlet is connected to a drain pipe;

[0020] The second outlet is located lower than the first outlet;

[0021] A second valve is disposed at the first outlet, and a third valve is disposed at the second outlet.

[0022] Optionally, the air flow outlet is connected to the first air duct, and the air flow outlet is located on the upstream side or downstream side of the evaporator; or, the air conditioner indoor unit also includes a second air duct, and the air flow outlet is connected to the second air duct; a fan is provided in the second air duct, or the second air duct is a drainage air duct, so as to utilize the air flow out of the first air duct to promote the outflow of the air flow in the second air duct.

[0023] Optionally, the air flow inlet is an indoor air inlet, or the air flow inlet is connected to a fresh air duct.

[0024] In the indoor unit of the air conditioner of the utility model, the indoor or outdoor air flow will enter the air flow cooling device through the air flow inlet. Since the temperature of the condensed water is relatively low, the condensed water in the air flow cooling device will perform heat exchange with the indoor or outdoor air, thereby reducing the temperature of the indoor or outdoor air. Preferably, the air flow is fresh air. The fresh air after the temperature is reduced passes through the evaporator. Compared with the prior art in which the evaporator is used to perform heat exchange with the indoor air and the fresh air at the same time, the heat exchange effect of the indoor unit of the air conditioner is improved. The indoor unit of the air conditioner of the utility model can minimize the influence on the heat exchange efficiency of the evaporator, thereby improving the heat exchange efficiency of the indoor unit of the air conditioner and improving the user experience.

[0025] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0027] Figure 1 is a schematic structural diagram of an airflow cooling device according to an embodiment of the utility model;

[0028] Figure 2 is a schematic partial structural diagram of an airflow cooling device according to another embodiment of the utility model;

[0029] Figure 3 is a schematic partial structural diagram of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0030] Figure 4 is a schematic partial structural diagram of an air conditioner indoor unit according to another embodiment of the utility model;

[0031] Figure 5It is a schematic partial structural diagram of an air conditioner indoor unit according to another embodiment of the utility model. DETAILED DESCRIPTION

[0032] Refer to the following Figures 1 to 5 To describe the air conditioner indoor unit of an embodiment of the present utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0033] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0034] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] Figure 1 is a schematic structural diagram of an airflow cooling device according to an embodiment of the utility model, such as Figure 1 As shown, and refer to Figures 2 to 5 The embodiment of the utility model provides an indoor unit of an air conditioner, comprising a first air duct 110 and an evaporator 120 disposed in the first air duct 110. An airflow cooling device is also included. The airflow cooling device has a condensation water inlet 135 for condensation water to enter, an airflow inlet 133 for airflow to enter, and an airflow outlet 134 for airflow to flow out. The condensation water inlet 135 is used to receive condensation water generated on the evaporator 120. The airflow cooling device is configured to allow water entering therein to perform heat exchange with the airflow entering therein.

[0037] In the indoor unit of the air conditioner of the embodiment of the utility model, when the indoor unit of the air conditioner is turned on, the moisture in the air flow passing through the evaporator 120 will form condensed water on the surface of the evaporator during the heat exchange process, and the condensed water enters the air flow cooling device through the condensed water inlet 135. The indoor or outdoor air flow will enter the air flow cooling device through the air flow inlet 133. Since the temperature of the condensed water is relatively low, the condensed water in the air flow cooling device will perform heat exchange with the indoor or outdoor air, so that the temperature of the indoor or outdoor air is reduced. Preferably, the air flow is fresh air. The fresh air after the temperature is reduced passes through the evaporator again. Compared with the prior art that uses the evaporator 120 to perform heat exchange with the indoor air and the fresh air at the same time, the heat exchange effect of the indoor unit of the air conditioner is improved. The indoor unit of the air conditioner of the utility model can minimize the influence on the heat exchange efficiency of the evaporator 120, improve the heat exchange efficiency of the indoor unit of the air conditioner, and improve the user experience.

[0038] In some embodiments of the present invention, Figure 1 As shown, the airflow cooling device also has a condensed water outlet 136 to allow the water in the airflow cooling device to flow out. A first valve 137 is provided at the condensed water outlet 136. The air conditioner indoor unit also includes a water amount detection device configured to detect the amount of water in the airflow cooling device to control the opening and closing of the first valve 137 according to the amount of water.

[0039] It can be seen from the above embodiments that when the indoor unit of the air conditioner is running, the condensed water generated by the evaporator 120 will enter the airflow cooling device through the condensed water inlet. In this embodiment, the airflow cooling device has a preset water volume. During the operation of the indoor unit of the air conditioner, the condensed water generated by the evaporator 120 will continue to enter the airflow cooling device, and the water volume detection device will always detect the amount of condensed water in the airflow cooling device. When the water volume detection device detects that the amount of condensed water in the airflow cooling device is greater than the preset water volume of the airflow cooling device, it indicates that the airflow cooling device at this time can no longer enter condensed water, and the first valve 137 is controlled to open, and the condensed water of the airflow cooling device flows out through the condensed water outlet 136.

[0040] When the water volume detection device detects that the water volume in the airflow cooling device is lower than the preset water volume, the first valve 137 is controlled to be closed so that the condensed water in the airflow cooling device does not flow out. The arrangement of the water volume detection device and the first valve 137 ensures that the condensed water in the airflow cooling device is not too full. It also ensures that the condensed water in the airflow cooling device is not too little, thereby ensuring the heat exchange efficiency of the airflow cooling device to the airflow.

[0041] In some embodiments of the utility model, the water volume detection device is a water level detection device. The water level of the condensed water in the airflow cooling device is detected. When the water level of the condensed water is higher than the highest preset water level of the airflow cooling device, the first valve 137 is controlled to open so that the condensed water in the airflow cooling device flows out. When the water level of the condensed water is lower than the lowest preset water level of the airflow cooling device, the first valve 137 is controlled to close so that the condensed water in the airflow cooling device does not flow out.

[0042] In some alternative embodiments of the present embodiment, the water quantity detection device is a quality detection device. The quality detection device detects the quality of the condensed water in the airflow cooling device. When the quality of the condensed water is less than the minimum preset quality, the first valve 137 is in a closed state. When the quality of the condensed water is greater than the maximum preset quality, the first valve 137 is opened. The quality mentioned in this embodiment refers to weight, so the minimum preset weight is the minimum preset weight of the airflow cooling device, and the maximum preset weight is the maximum preset weight of the airflow cooling device.

[0043] In some embodiments of the present invention, the indoor unit of the air conditioner further includes a water temperature detection device configured to detect the temperature of water in the air flow cooling device to control the opening and closing of the first valve 137 according to the temperature.

[0044] It can be seen from the above embodiments that when the indoor unit of the air conditioner is running, the condensed water generated by the evaporator 120 will enter the airflow cooling device through the condensed water inlet. In this embodiment, the airflow cooling device has a preset temperature. When the indoor unit of the air conditioner is working, the evaporator 120 will continue to generate condensed water, that is, the condensed water will be continuously supplied to the airflow cooling device. The water temperature detection device detects the temperature of the condensed water in the airflow cooling device. When the temperature of the condensed water is higher than the maximum preset temperature, it means that the temperature of the condensed water in the airflow cooling device is high at this time, and the heat exchange effect on the airflow is poor. When the temperature of the condensed water is greater than the maximum preset temperature, the first valve 137 is controlled to open, and the condensed water in the airflow cooling device flows out from the condensed water outlet 136. The newly generated condensed water of the evaporator 120 continues to supply the airflow cooling device. When the water temperature detection device detects that the temperature of the condensed water in the airflow cooling device is lower than the minimum preset temperature, it means that the temperature of the condensed water in the airflow cooling device meets the heat exchange requirement, and the first valve 137 is controlled to be closed.

[0045] The provision of the water temperature detection device and the first valve 137 ensures that the temperature of the condensed water in the airflow cooling device will not be too high, thereby ensuring the heat exchange efficiency of the airflow cooling device.

[0046] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the airflow cooling device includes a cooling box 130 and a partition structure arranged in the cooling box 130, the partition structure divides the space in the cooling box 130 into an airflow space and a water space 131, the airflow inlet 133 and the airflow outlet 134 are connected to the airflow space, and the condensed water inlet 135 is connected to the water space 131.

[0047] In this embodiment, the airflow space of the cooling box 130 is used to store indoor or outdoor air, and the water space 131 is used to store condensed water. During operation, indoor or outdoor air enters the airflow space through the airflow inlet 133, and condensed water enters the water space 131 of the cooling box 130 through the condensed water inlet 135. The condensed water in the water space 131 exchanges heat with the air in the airflow space. The air after heat exchange may be discharged through the airflow outlet 134.

[0048] Due to the arrangement of the partition structure, the water space 131 and the airflow space are separated, that is, the condensed water inlet 135 is not in the same space as the airflow inlet 133 and the airflow outlet 134, and the condensed water inlet 135 is not connected in series with the airflow inlet 133 and the airflow outlet 134. Air will not flow back into the condensed water inlet 135, and condensed water will not flow out from the airflow inlet 133 and the airflow outlet 134, thereby ensuring the normal operation of the indoor unit of the air conditioner.

[0049] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the condensed water outlet 136 is communicated with the water space 131 .

[0050] In this embodiment, when the condensed water does not meet the heat exchange requirements, the condensed water in the water space 131 will be discharged through the condensed water outlet 136, and the condensed water inlet 135 will continue to replenish condensed water to the water space 131 to ensure that the condensed water in the water space 131 meets the heat exchange requirements.

[0051] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the spacing structure is an airflow tube 132 , and the airflow tube 132 is disposed in the cooling box 130 , so that the space inside the airflow tube 132 is an airflow space, and the space outside the airflow tube 132 in the cooling box 130 is a water space 131 .

[0052] In this embodiment, indoor or outdoor air enters the airflow tube 132 from the airflow inlet 133, and after heat exchange in the airflow tube 132, flows out from the airflow outlet 134. Since the space outside the airflow tube 132 is the water space 131, that is, the water space 131 wraps the airflow space, the air in the airflow space can be better exchanged with heat.

[0053] In some embodiments of the present invention, Figure 1 As shown, the airflow tube 132 is bent and extended, and laid flat on the bottom of the cooling box 130 .

[0054] In this embodiment, since the airflow tube 132 is bent and extended, compared with the straight airflow tube 132, the length of the bent and extended airflow tube 132 is longer, that is, the air circulates in the airflow tube 132 for a longer time, and the air heat exchange time is longer, which effectively improves the air heat exchange efficiency.

[0055] Under the effect of gravity, the condensed water will be concentrated at the bottom of the cooling box 130. In this embodiment, the airflow pipe 132 is laid flat on the bottom of the cooling box 130, so that the condensed water can better exchange heat with the airflow pipe 132.

[0056] In some embodiments of the present invention, Figure 2 As shown, there are a plurality of air flow pipes 132 , which are arranged in parallel and at intervals in the cooling box 130 .

[0057] In this embodiment, indoor or outdoor air can enter multiple airflow pipes 132 for heat exchange. Since there are more airflow pipes 132, the heat exchange efficiency of the air is improved, and the flow speed of the air in the airflow pipes 132 is slowed down, the air supply noise is reduced, and the user experience is further improved.

[0058] Furthermore, since there is a gap between each airflow tube 132 , that is, there is a water space 131 between the airflow tubes 132 , the water space 131 wraps each airflow tube 132 , thereby ensuring heat exchange for each airflow tube 132 .

[0059] In some embodiments of the present invention, the cooling box 130 is a water collecting tank. The indoor unit of the air conditioner further comprises a water pump and a functional module, and the water pump is configured to pump the water in the cooling box 130 into the functional module. The functional module is a humidification module.

[0060] As can be seen from the above embodiment, a water space 131 is provided in the cooling box 130. In this embodiment, the cooling box 130 is a water collecting tank, and the water in the water collecting tank is condensed water. The water pump is started to cause the condensed water in the cooling box 130 to enter the humidification module to humidify the indoor air. The condensed water after heat exchange is reused, which solves the problem of resources and saves operating costs in a certain sense.

[0061] In some embodiments of the present invention, the functional module is a cleaning module, and the condensed water in the cooling device enters the cleaning module by a water pump, and the condensed water after heat exchange is reused.

[0062] In some embodiments of the present invention, the functional modules are a humidification module and a cleaning module, that is, the condensed water after heat exchange is supplied to the humidification module and the cleaning module at the same time.

[0063] In some embodiments of the present invention, the cooling box 130 is connected to a water collecting tank. Condensed water after heat exchange in the cooling box 130 enters the water collecting tank, and then a water pump is used to supply the condensed water in the water collecting tank to the cleaning module and the humidification module.

[0064] In some embodiments of the present invention, Figure 3 As shown, the indoor unit of the air conditioner further includes a condensed water collecting device, which is configured to receive condensed water generated on the evaporator 120. The condensed water collecting device is in communication with the condensed water inlet 135. The condensed water collecting device is a water receiving tray 150, the bottom wall of the water receiving tray 150 is the top wall of the cooling box 130, and the condensed water inlet 135 is provided on the top wall of the cooling box 130.

[0065] In this embodiment, the condensed water generated by the evaporator 120 during the heat exchange process enters the water receiving tray 150, and then enters the cooling box 130 through the condensed water inlet 135 on the bottom wall of the water receiving tray 150. Since the bottom wall of the water receiving tray 150 is the top wall of the cooling box 130, that is, the time for the condensed water in the water receiving tray 150 to reach the cooling box 130 is very short, which ensures that the temperature of the condensed water reaching the cooling box 130 remains basically unchanged, further ensuring the heat exchange efficiency.

[0066] In some embodiments of the present invention, the cooling box 130 is a box body with an opening facing upward, which is disposed at the lower side of the evaporator 120 , and the opening of the box body is a condensed water inlet 135 .

[0067] In this embodiment, the condensed water generated by the evaporator 120 during the heat exchange process directly enters the cooling box 130 through the opening of the box body, that is, the condensed water inlet 135. While shortening the condensed water delivery path, the structure of the cooling box 130 is also simpler.

[0068] In some alternative embodiments of this embodiment, such as Figure 4 As shown, the cooling box 130 is a water receiving tray 150 .

[0069] In some embodiments of the present invention, Figure 3 As shown, the indoor unit of the air conditioner further includes a condensate collection device, which is configured to receive condensate generated on the evaporator 120. The condensate collection device is a water receiving tray 150, and the condensate collection device has a first outlet 153 and a second outlet 151, the first outlet 153 is connected to the condensate inlet 135, and the second outlet 151 is connected to a drain pipe 160. The second outlet 151 is located lower than the first outlet 153. A second valve 154 is provided at the first outlet 153, and a third valve 152 is provided at the second outlet 151.

[0070] In this embodiment, the condensed water generated by the evaporator 120 during the heat exchange process enters the water receiving pan 150, then enters the cooling box 130 through the first outlet 153 on the water receiving pan 150, and enters the drain pipe 160 through the second outlet 151 in the water receiving pan 150 to be discharged. Since the indoor or outdoor air is not pure, there may be impurities mixed therein, that is, there may also be impurities in the air exchanged by the evaporator 120. After the impurities enter the water receiving pan 150, they will be affected by gravity and will gather at the lowest point of the water receiving pan 150. Since the second outlet 151 is lower than the first outlet 153, the impurities will gather at the position of the second outlet 151 and finally be discharged through the drain pipe 160. Furthermore, the setting of the positions of the second outlet 151 and the first outlet 153 prevents impurities from entering the cooling box 130.

[0071] When the cooling box 130 needs condensed water, the second valve 154 is opened, and the condensed water in the water receiving tray 150 enters the cooling box 130 through the first outlet 153. When there are impurities in the water receiving tray 150, or there is too much condensed water in the water receiving tray 150, the third valve 152 is opened to discharge the impurities and condensed water from the drain pipe 160.

[0072] In some embodiments of the present invention, Figure 5As shown, the air flow outlet 134 is in communication with the first air duct 110 , and the air flow outlet 134 is located at the upstream side or the downstream side of the evaporator 120 .

[0073] In this embodiment, the airflow after heat exchange enters the upstream side of the evaporator 120 through the airflow outlet 134, so that the evaporator 120 blows the airflow into the room after heat exchange. Since the airflow reaching the first air duct 110 has been subjected to the primary heat exchange of the condensed water, the temperature has been reduced, and then the airflow is subjected to the secondary heat exchange of the evaporator 120, the evaporator 120 can complete the heat exchange of the airflow at a lower power. In other words, the airflow after the primary heat exchange can reduce the power of the evaporator 120, save electricity resources, and reduce the operating cost of the indoor unit of the air conditioner.

[0074] In this embodiment, the airflow after heat exchange enters the downstream side of the evaporator 120 through the airflow outlet 134, and then mixes with the airflow after heat exchange in the evaporator, and is blown out together from the air outlet 150 of the air conditioner indoor unit. Since the airflow reaching the downstream side of the evaporator 120 also undergoes heat exchange, it is ensured that the airflow blown out of the air conditioner indoor unit meets the heat exchange requirements.

[0075] In some embodiments of the utility model, the indoor unit of the air conditioner further includes a second air duct, and the air flow outlet 134 is connected to the second air duct. The second air duct is a drainage air duct, so as to use the air flow out of the first air duct 110 to promote the air flow in the second air duct to flow out. Preferably, the air outlet of the second air duct is located on one side of the air outlet of the first air duct 110, so that when the air is discharged from the air outlet of the first air duct 110, a negative pressure is formed, and the air flow in the second air duct flows out from the outlet under the action of the negative pressure.

[0076] In this embodiment, the air flow after condensation water heat exchange enters the second air duct. When the first air duct 110 supplies air, the air flow in the second air duct is forced to flow toward the front side of the air conditioner indoor unit, forming mixed air with the air blown out from the first air duct 110 and then blown out.

[0077] In some alternative embodiments of this embodiment, a fan is provided in the second air duct to blow out the wind in the second air duct.

[0078] In some embodiments of the present invention, Figure 4 As shown, the airflow inlet 133 is the indoor air inlet, and the corresponding airflow is the indoor air. Alternatively, the airflow inlet 133 is connected to the fresh air duct 140, and the corresponding airflow is the fresh air. In this embodiment, the cooling box 130 performs heat exchange with the indoor unit air, or performs heat exchange with the outdoor air.

[0079] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An indoor unit of an air conditioner, comprising a first air duct and an evaporator arranged in the first air duct, characterized in that: Also includes: An air flow cooling device, the air flow cooling device having a condensation water inlet for condensation water to enter, an air flow inlet for air flow to enter, and an air flow outlet for air flow to flow out; the condensation water inlet is used to receive the condensation water generated on the evaporator; the air flow cooling device is configured to allow water entering therein to exchange heat with the air flow entering therein.

2. The air conditioner indoor unit according to claim 1, characterized in that: The airflow cooling device also has a condensed water outlet to allow water in the airflow cooling device to flow out; A first valve is provided at the condensate outlet; The air conditioner indoor unit further comprises a water quantity detection device configured to detect the water quantity in the air flow cooling device to control the opening and closing of the first valve according to the water quantity; the water quantity detection device is a water level detection device or a quality detection device; or, The air conditioner indoor unit further comprises a water temperature detection device configured to detect the temperature of water in the air flow cooling device so as to control the opening and closing of the first valve according to the temperature.

3. The indoor unit of the air conditioner according to claim 1, characterized in that: The airflow cooling device includes a cooling box and a partition structure arranged in the cooling box, the partition structure divides the space in the cooling box into an airflow space and a water space, the airflow inlet and the airflow outlet are connected to the airflow space, and the condensed water inlet is connected to the water space.

4. The air conditioner indoor unit according to claim 3, characterized in that: The spacing structure is an airflow tube, and the airflow tube is arranged in the cooling box, so that the space inside the airflow tube is an airflow space, and the space outside the airflow tube in the cooling box is a water space.

5. The air conditioner indoor unit according to claim 4, characterized in that: The airflow tube is bent and extended, and laid flat on the bottom of the cooling box; or There are a plurality of airflow pipes, which are arranged in parallel and at intervals in the cooling box.

6. The indoor unit of the air conditioner according to claim 3, characterized in that: The cooling box is a water collecting tank or the cooling box is connected to a water collecting tank; The air conditioner indoor unit further comprises a water pump and a functional module, wherein the water pump is configured to pump the water in the cooling box into the functional module; the functional module is a humidification module and / or a cleaning module.

7. The air conditioner indoor unit according to claim 3, characterized in that: The indoor unit of the air conditioner further comprises a condensed water collecting device, which is configured to receive condensed water generated on the evaporator; the condensed water collecting device is in communication with the condensed water inlet; the condensed water collecting device is a water receiving tray, the bottom wall of the water receiving tray is the top wall of the cooling box, and the condensed water inlet is arranged on the top wall of the cooling box; or, The cooling box is a box body with an opening facing upward, which is arranged on the lower side of the evaporator, and the opening of the box body is the condensed water inlet; or, the cooling box is a water receiving tray.

8. The air conditioner indoor unit according to claim 1, characterized in that: The indoor unit of the air conditioner further comprises a condensed water collecting device, wherein the condensed water collecting device is configured to receive the condensed water generated on the evaporator; the condensed water collecting device is a water receiving tray, and the condensed water collecting device has a first outlet and a second outlet. The first outlet is communicated with the condensate inlet, and the second outlet is connected to a drain pipe; The second outlet is located lower than the first outlet; A second valve is disposed at the first outlet, and a third valve is disposed at the second outlet.

9. The air conditioner indoor unit according to claim 1, characterized in that: The air flow outlet is connected to the first air duct, and the air flow outlet is located on the upstream side or downstream side of the evaporator; or, the air conditioner indoor unit also includes a second air duct, and the air flow outlet is connected to the second air duct; a fan is provided in the second air duct, or the second air duct is a drainage air duct, so as to utilize the air flow out of the first air duct to promote the outflow of the air flow in the second air duct.

10. The air conditioner indoor unit according to claim 1, characterized in that: The air flow inlet is an indoor air inlet, or the air flow inlet is connected to a fresh air duct.

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