Cabinet type air conditioner indoor unit and air conditioner

Abstract

The utility model provides a cabinet type air conditioner indoor unit and an air conditioner, the cabinet type air conditioner indoor unit comprises a machine shell, a first evaporator, a first water receiving disc, a second evaporator, a second water receiving disc and a water storage disc, the first water receiving disc is located under the first evaporator in the vertical direction, and the second water receiving disc is located under the second evaporator in the vertical direction; the second water pan is located at the top of the first evaporator in the vertical direction, the bottom of the second evaporator is inserted into the second water pan, the second water pan is communicated with the first water pan through a communicating pipe, the first water pan is provided with a water outlet, the water outlet is communicated with the water storage pan, the water storage pan is provided with a water drainage opening, and the water drainage opening is externally connected with a water drainage pipe. According to the cabinet type air conditioner indoor unit, the evaporator can be prevented from being soaked by condensate water, so that the heat exchange effect and the heat exchange efficiency of the evaporator are guaranteed, the phenomenon that water is contained in outlet air of the evaporator can be prevented, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to a cabinet-type air conditioner indoor unit and an air conditioner having the cabinet-type air conditioner indoor unit. Background Technology

[0002] Air conditioners are common household appliances in people's daily lives. With the rapid development of technology improving people's quality of life, consumers' demands for air conditioners will become more diversified, and the development trend of air conditioners is gradually moving towards diversification and high efficiency.

[0003] When an air conditioner is running in cooling mode, a large amount of condensate will be generated at the evaporator of the indoor unit due to the low temperature. Therefore, a drip tray is installed inside the indoor unit. The drip tray is located vertically below the evaporator, and the bottom of the evaporator is inserted into the drip tray. The drip tray can collect the condensate generated by the evaporator and discharge it through the drain pipe, thereby preventing the condensate from affecting the operation of the air conditioner.

[0004] However, existing cabinet air conditioner indoor units only have a drip tray directly below the evaporator to collect the condensate produced by the evaporator. Because the evaporator in the cabinet air conditioner indoor unit is relatively tall and has a large overall area, it produces a large amount of condensate. It is difficult to quickly drain all the condensate into a single drip tray, resulting in excessive condensate accumulation. This causes the bottom of the evaporator, which is inserted into the drip tray, to be immersed in excessive condensate. As a result, the excessive condensate flows and blocks the fin spacing at the bottom of the evaporator, affecting the heat exchange effect and efficiency of the evaporator. Furthermore, there is water runoff from the evaporator area near the bottom of the evaporator, which in turn affects the user experience. Summary of the Invention

[0005] To achieve the primary objective of this utility model, it provides a cabinet-type indoor air conditioner unit that can prevent the evaporator from being soaked in condensate, thereby ensuring the heat exchange effect and efficiency of the evaporator, and preventing water from being carried out of the evaporator, thus improving the user experience.

[0006] To achieve the second objective of this utility model, this utility model provides an air conditioner having the above-mentioned cabinet-type indoor unit.

[0007] To achieve the first objective of this utility model, this utility model provides a cabinet-type air conditioner indoor unit, including a casing, a first evaporator, a first drip tray, a second evaporator, a second drip tray, and a water storage tray. The first evaporator, the first drip tray, the second evaporator, the second drip tray, and the water storage tray are located inside the casing. The first drip tray is vertically positioned directly below the first evaporator, with the bottom of the first evaporator inserted into the first drip tray. The second drip tray is vertically positioned directly below the second evaporator, and vertically positioned at the top of the first evaporator, with the bottom of the second evaporator inserted into the second drip tray. The second drip tray is connected to the first drip tray via a connecting pipe. The first drip tray has a water outlet connected to the water storage tray. The water storage tray has a drain outlet connected to a drain pipe, with the outlet end of the drain pipe extending out of the casing.

[0008] As can be seen from the above scheme, the second evaporator of the indoor unit of the cabinet air conditioner of this utility model is located above the first evaporator in the vertical direction. During the operation of the cooling mode, the condensate produced by the second evaporator is collected in the second water receiving pan directly below it. Since the second water receiving pan is connected to the first water receiving pan through a connecting pipe, the condensate collected in the second water receiving pan is transported to the first water receiving pan through the connecting pipe, preventing the accumulation of condensate in the second water receiving pan and avoiding the bottom of the second evaporator inserted into the second water receiving pan from being soaked by the condensate in the second water receiving pan. At the same time, the condensate produced by the first evaporator is collected in the first water receiving pan directly below it. Since the first water receiving pan has a water outlet connected to the water storage pan, the condensate in the first water receiving pan is transported to the water storage pan through the water outlet, preventing the accumulation of condensate in the first water receiving pan and avoiding the bottom of the first evaporator inserted into the first water receiving pan from being soaked by the condensate in the first water receiving pan. Furthermore, the condensate collected in the water storage pan can be discharged to the outside of the indoor unit of the cabinet air conditioner through a drain pipe.

[0009] This utility model of a cabinet-type air conditioner indoor unit divides the existing vertically tall and large-area integral evaporator into a first evaporator and a second evaporator. This allows condensate from the upper second evaporator to be trapped in a second drip tray, reducing the amount of condensate produced by the lower first evaporator. This prevents condensate accumulation in both drip trays, avoiding immersion of the bottom of the first evaporator (into the first drip tray) and the bottom of the second evaporator (into the second drip tray), thus ensuring the heat exchange effect and efficiency of the evaporators. Furthermore, it prevents water from being carried away by the airflow from the evaporator areas near the bottom of the first and second evaporators, thereby improving the user experience.

[0010] A further embodiment includes a cabinet-type air conditioner indoor unit comprising a first humidifier, a first control valve, a switching valve, a drain valve, and a booster pump located within the casing. A second water tray has a first water inlet connected to the first water inlet of the first humidifier. A first control valve is located at the first water inlet to open or close it. A drain valve is located at the drain outlet to open or close it. The connecting pipe includes a first pipe section, a second pipe section, and a third pipe section. The first port of the first pipe section is connected to the second water tray. The second port of the first pipe section is connected to the first port of the second pipe section and the first port of the third pipe section, respectively. The second port of the second pipe section is connected to the first water tray. A switching valve is located on the second pipe section to control the connection or closure of the second pipe section. The second port of the third pipe section is connected to the outlet of the booster pump. The inlet of the booster pump is connected to the water storage tray.

[0011] As can be seen from the above scheme, when the humidification function is activated, the first humidifier and the booster pump are turned on, and the first control valve opens the first water inlet of the second water tray. Under the pumping operation of the booster pump, the condensate in the water storage tray is transported to the second water tray through the third pipe section and the first pipe section. The condensate produced by the second evaporator is collected in the second water tray. The condensate in the second water tray is supplied to the first humidifier through the opened first water inlet, enabling the first humidifier to humidify and preventing condensate accumulation in the second water tray, thus avoiding the second evaporator inserted into the second water tray. The bottom is soaked by condensate in the second water tray. At this time, the control switching valve closes the second pipe section to prevent the condensate in the first pipe section from flowing back into the first water tray, which would cause the amount of condensate supplied from the first pipe section to the second water tray to be insufficient to meet the humidification water source requirements of the first humidifier. At the same time, the control drain valve closes the drain outlet of the water storage tray to ensure that there is enough condensate in the water storage tray to supply the second water tray to the first humidifier. The condensate produced by the first evaporator is collected in the first water tray and transported to the water storage tray to supply the second water tray and the first humidifier for humidification operation.

[0012] When the humidification function is turned off, the first humidifier and booster pump are shut off, and the first control valve closes the first water inlet of the second water tray. The switching valve connects the second pipe section, so the condensate produced by the second evaporator is collected in the second water tray and sequentially transported to the first water tray through the first and second pipe sections. This prevents condensate buildup in the second water tray, thus avoiding immersion of the bottom of the second evaporator inserted into the second water tray by the condensate. Simultaneously, the condensate produced by the first evaporator is collected in the first water tray. Since the first water tray has an outlet connected to the water storage tray, the condensate in the first water tray is transported to the water storage tray through the outlet, preventing condensate buildup in the first water tray and avoiding immersion of the bottom of the first evaporator inserted into the first water tray by the condensate. Furthermore, the drain valve located at the drain outlet of the water storage pan can be controlled to open and close as needed. When it is necessary to store condensate in preparation for humidification, the drain valve is controlled to close the drain outlet of the water storage pan to ensure that there is enough condensate in the water storage pan to meet the humidification operation. When the stored condensate exceeds the water storage capacity of the water storage pan, the drain valve is controlled to open the drain outlet of the water storage pan and discharge it to the outside of the cabinet air conditioner indoor unit through the drain pipe to prevent the condensate in the water storage pan from overflowing and affecting the operating performance of the cabinet air conditioner indoor unit.

[0013] This utility model's cabinet-type air conditioner indoor unit can recover and reuse condensate water as a working water source for humidification operation, saving resources and reducing costs. Furthermore, this utility model's cabinet-type air conditioner indoor unit uses a three-branched connecting pipe to achieve both the supply of humidification water and the discharge of condensate water, minimizing the space occupied by piping, thereby reducing costs and saving space.

[0014] A further design involves a through-hole opening on the periphery of the second water receiving tray, with the first port of the first pipe section connected to the through-hole, and the diameter of the first port of the first pipe section gradually increasing towards the through-hole in a funnel shape.

[0015] A further option is that the indoor unit of the cabinet air conditioner also includes a second humidifier and a second control valve located inside the casing. The second water tray has a second water inlet, which is connected to the second water inlet of the second humidifier. The second control valve is located at the second water inlet to open or close the second water inlet.

[0016] A further embodiment is that the bottom of the first humidifier is inserted into the first water receiving tray and supported on the bottom wall of the first water receiving tray, and the top of the first humidifier is supported on the bottom of the second water receiving tray; and / or, the bottom of the second humidifier is inserted into the first water receiving tray and supported on the bottom wall of the first water receiving tray, and the top of the second humidifier is supported on the bottom of the second water receiving tray; and / or, the first humidifier and the second humidifier are located on opposite sides of the first evaporator in the horizontal direction, or the first humidifier and the second humidifier are located on opposite sides of the second evaporator in the horizontal direction.

[0017] A further option is that the first humidifier is a wet film humidifier; and / or, the second humidifier is a wet film humidifier.

[0018] A further option is to install a filter screen at the water outlet; and / or, to have a water outlet through the bottom wall of the first water receiving tray, with the bottom wall of the first water receiving tray inclined downward toward the water outlet.

[0019] A further embodiment is that the indoor unit of the cabinet air conditioner also includes a first water level sensor, which is installed in the water storage pan; and / or, the indoor unit of the cabinet air conditioner also includes a second water level sensor, which is installed in the first water receiving pan.

[0020] A further embodiment is that the water storage tray is located directly below the first water receiving tray in the vertical direction; and / or, the first evaporator and the second evaporator are arranged side by side in the vertical direction; and / or, the second water receiving tray is located at the middle of the height between the first evaporator and the second evaporator in the vertical direction.

[0021] To achieve the second objective of this utility model, this utility model provides an air conditioner, including a cabinet-type air conditioner indoor unit, wherein the cabinet-type air conditioner indoor unit is the aforementioned cabinet-type air conditioner indoor unit. Attached Figure Description

[0022] Figure 1 This is a structural diagram of an embodiment of the cabinet-type air conditioner indoor unit of this utility model.

[0023] Figure 2 yes Figure 1 Enlarged view at point A.

[0024] Figure 3 This is a top view of an embodiment of the cabinet-type air conditioner indoor unit of this utility model.

[0025] Figure 4 This is a first-view side view of an embodiment of the cabinet-type air conditioner indoor unit of this utility model.

[0026] Figure 5 This is a second-perspective side view of an embodiment of the cabinet-type air conditioner indoor unit of this utility model.

[0027] Figure 6 yes Figure 5 Enlarged view at point B.

[0028] Figure 7 This is a cross-sectional view of the first pipe section in an embodiment of the cabinet-type air conditioner indoor unit of this utility model.

[0029] Figure 8 This is a structural diagram of the water storage tray in an embodiment of the cabinet-type air conditioner indoor unit of this utility model.

[0030] Figure 9 This is a cross-sectional view of an embodiment of the cabinet-type air conditioner indoor unit of this utility model.

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0032] See Figures 1 to 9 This embodiment discloses a cabinet-type air conditioner indoor unit 10, including a casing 11, a first evaporator 12, and a first drip tray 13. The first evaporator 12 and the first drip tray 13 are located inside the casing 11, and the first drip tray 13 is vertically positioned directly below the first evaporator 12, with the bottom of the first evaporator 12 inserted into the first drip tray 13. Furthermore, this embodiment of the cabinet-type air conditioner indoor unit 10 also includes a second evaporator 14, a second drip tray 15, and a water storage tray 16 located inside the casing 11. The second drip tray 15 is vertically positioned directly below the second evaporator 14, and the second drip tray 15 is vertically positioned above the first evaporator 12, with the bottom of the second evaporator 14 inserted into the second drip tray 15. In addition, in this embodiment, the second water receiving tray 15 is connected to the first water receiving tray 13 through the connecting pipe 19. The first water receiving tray 13 has a water outlet (not shown). The water outlet of the first water receiving tray 13 is connected to the water storage tray 16. The water storage tray 16 has a drain outlet 161. A drain pipe (not shown) is connected to the drain outlet 161. The water outlet end of the drain pipe passes through the casing 11.

[0033] In this embodiment, the second evaporator 14 of the indoor unit 10 of the cabinet air conditioner is located vertically above the first evaporator 12. During operation in cooling mode, the condensate produced by the second evaporator 14 is collected in the second drip tray 15 directly below it. Since the second drip tray 15 is connected to the first drip tray 13 through a connecting pipe 19, the condensate collected in the second drip tray 15 is transported to the first drip tray 13 through the connecting pipe 19, preventing condensate accumulation in the second drip tray 15 and avoiding damage to the bottom of the second evaporator 14 inserted into the second drip tray 15. The condensate in the first evaporator 12 is soaked in the condensate, and the condensate produced by the first evaporator 12 is collected in the first water receiving pan 13 directly below it. Since the first water receiving pan 13 has a water outlet connected to the water storage pan 16, the condensate in the first water receiving pan 13 is transported to the water storage pan 16 through the water outlet, preventing the accumulation of condensate in the first water receiving pan 13, so as to avoid the bottom of the first evaporator 12 inserted in the first water receiving pan 13 being soaked in the condensate in the first water receiving pan 13. In addition, the condensate collected in the water storage pan 16 can be discharged to the outside of the cabinet air conditioner indoor unit 10 through the drain pipe.

[0034] In this embodiment, the indoor unit 10 of the cabinet air conditioner divides the existing large-area, vertically tall evaporator into a first evaporator 12 and a second evaporator 14. This allows the condensate produced by the second evaporator 14 to be trapped in the second drip tray 15, reducing the amount of condensate produced by the first evaporator 12. This prevents condensate accumulation in the first and second drip trays 13 and 15, thus avoiding immersion of the bottom of the first evaporator 12 (inserted in the first drip tray 13) and the bottom of the second evaporator 14 (inserted in the second drip tray 15) in the same way. This ensures the heat exchange effect and efficiency of the evaporators and prevents water from being carried out of the evaporator area near the bottom of the first and second evaporators 14, thereby improving the user experience.

[0035] To recycle and reuse condensate to save resources and reduce costs, and to meet users' humidification needs, the indoor unit 10 of this embodiment of the cabinet air conditioner also includes a first humidifier 111, a first control valve (not shown), a switching valve 110, a drain valve (not shown), and a booster pump 18 located inside the casing 11. A second water tray 15 has a first water inlet 151, which is connected to the first water inlet of the first humidifier 111. The first control valve is located at the first water inlet 151 to open or close it, and the drain valve is located at the drain outlet 161 to open or close it. The embodiment of the connecting pipe 19 includes a first pipe section 191, a second pipe section 192, and a third pipe section 193. The first port 1911 of the first pipe section 191 is connected to the second water receiving tray 15. The second port of the first pipe section 191 is connected to the first port of the second pipe section 192 and the first port of the third pipe section 193, respectively. The second port of the second pipe section 192 is connected to the first water receiving tray 13. A switching valve 110 is installed on the second pipe section 192 to control the second pipe section 192 to be connected or closed. The second port of the third pipe section 193 is connected to the outlet of the booster pump 18. The inlet of the booster pump 18 is connected to the water storage tray 16.

[0036] When the humidification function is activated, the first humidifier 111 and the booster pump 18 are turned on, and the first control valve opens the first water inlet 151 of the second water tray 15. Under the pumping operation of the booster pump 18, the condensate in the water storage tray 16 is transported to the second water tray 15 through the third pipe section 193 and the first pipe section 191. The condensate produced by the second evaporator 14 is collected in the second water tray 15. The condensate in the second water tray 15 is supplied to the first humidifier 111 through the opened first water inlet 151, enabling the first humidifier 111 to humidify and preventing condensate accumulation in the second water tray 15. This prevents the bottom of the second evaporator 14, which is inserted into the second water tray 15, from being subjected to [unspecified action]. When the condensate in the second water receiving pan 15 is soaked, the control switching valve 110 closes the second pipe section 192 to prevent the condensate in the first pipe section 191 from flowing back into the first water receiving pan 13, which would cause the amount of condensate supplied from the first pipe section 191 to the second water receiving pan 15 to be insufficient to meet the humidification water demand of the first humidifier 111. At the same time, the control drain valve closes the drain outlet 161 of the water storage pan 16 to ensure that there is enough condensate in the water storage pan 16 to supply the second water receiving pan 15 to supply the first humidifier 111. The condensate generated by the first evaporator 12 is collected in the first water receiving pan 13 and transported to the water storage pan 16 to supply the second water receiving pan 15 and the first humidifier 111 for humidification operation.

[0037] When the humidification function is turned off, the first humidifier 111 and the booster pump 18 are shut off, and the first control valve closes the first water inlet 151 of the second water tray 15. The switching valve 110 connects the second pipe section 192, so the condensate produced by the second evaporator 14 is collected in the second water tray 15 and sequentially transported to the first water tray 13 through the first pipe section 191 and the second pipe section 192. This prevents condensate accumulation in the second water tray 15, thus avoiding the need for the first evaporator 14 to be inserted into the second water tray 15. The bottom of the second evaporator 14 is soaked in the condensate in the second water receiving pan 15. At the same time, the condensate produced by the first evaporator 12 is collected in the first water receiving pan 13. Since the first water receiving pan 13 has an outlet connected to the water storage pan 16, the condensate in the first water receiving pan 13 is transported to the water storage pan 16 through the outlet, preventing the accumulation of condensate in the first water receiving pan 13 and avoiding the bottom of the first evaporator 12 inserted into the first water receiving pan 13 being soaked in the condensate in the first water receiving pan 13. Furthermore, the drain valve located at the drain outlet 161 of the water storage pan 16 can be controlled to open and close as needed. When it is necessary to store condensate in preparation for starting the humidification function, the drain valve is controlled to close the drain outlet 161 of the water storage pan 16 to ensure that there is enough condensate in the water storage pan 16 to meet the humidification operation. When the stored condensate exceeds the water storage capacity of the water storage pan 16, the drain valve is controlled to open the drain outlet 161 of the water storage pan 16 and discharge it to the outside of the cabinet air conditioner indoor unit 10 through the drain pipe to prevent the condensate in the water storage pan 16 from overflowing and affecting the operating performance of the cabinet air conditioner indoor unit 10.

[0038] In this embodiment, the cabinet-type air conditioner indoor unit 10 can recover and reuse condensate as the working water source for humidification operation, saving resources and reducing costs. Furthermore, in this embodiment, the cabinet-type air conditioner indoor unit 10 uses a three-branched connecting pipe 19 to supply humidification water and discharge condensate, minimizing the space occupied by piping, thereby reducing costs and saving space.

[0039] To avoid the risk of splashing due to excessive water pressure, the second water receiving tray 15 in this embodiment has a through-hole (not shown) on its peripheral wall. The first port 1911 of the first pipe section 191 connects to the through-hole of the second water receiving tray 15, and the diameter of the first port 1911 of the first pipe section 191 gradually increases towards the through-hole of the second water receiving tray 15, forming a funnel shape. Thus, during humidification operation, the booster pump 18 pressurizes and draws the condensate in the water storage tray 16 into the third pipe section 193, and then transports it to the second water receiving tray 15 through the first pipe section 191. Because the diameter of the first port 1911 of the first pipe section 191, which connects to the through-hole of the second water receiving tray 15, gradually increases towards the through-hole, forming a funnel shape, the high-pressure condensate in the first pipe section 191 is depressurized at the funnel-shaped first port 1911 of the first pipe section 191. The depressurized condensate smoothly enters the second water receiving tray 15 from the through-hole, thereby avoiding splashing due to excessive water pressure.

[0040] To further improve the humidification effect and efficiency, the indoor unit 10 of the cabinet air conditioner in this embodiment also includes a second humidifier 112 and a second control valve (not shown) located inside the casing 11. A second water inlet 152 is provided in the second water tray 15, which is connected to the second water inlet of the second humidifier 112. The second control valve is located at the second water inlet 152 to open or close it. Thus, the humidification water source for the second humidifier 112 comes from the condensate in the second water tray 15, saving resources and reducing costs. Specifically, in this embodiment, the first humidifier 111 and the second humidifier 112 are located horizontally on opposite sides of the first evaporator 12, or horizontally on opposite sides of the second evaporator 14, thereby further improving the humidification effect and efficiency. Furthermore, in this embodiment, the first humidifier 111 is a wet film humidifier, and the second humidifier 112 in this embodiment is a wet film humidifier, which has a simple structure and is easy to use.

[0041] In this embodiment, the bottom of the first humidifier 111 is inserted into the first water receiving tray 13 and supported on the bottom wall of the first water receiving tray 13, and the top of the first humidifier 111 is supported on the bottom of the second water receiving tray 15. Similarly, the bottom of the second humidifier 112 is inserted into the first water receiving tray 13 and supported on the bottom wall of the first water receiving tray 13, and the top of the second humidifier 112 is supported on the bottom of the second water receiving tray 15. Thus, the first humidifier 111 and the second humidifier 112 are used as a support structure between the first water receiving tray 13 and the second water receiving tray 15, improving the installation stability of the first water receiving tray 13 and the second water receiving tray 15 and saving costs.

[0042] Furthermore, in this embodiment, the water storage tray 16 is located directly below the first water receiving tray 13 in the vertical direction, which makes the structure compact and saves space.

[0043] Furthermore, in this embodiment, the first evaporator 12 and the second evaporator 14 are arranged side by side in the vertical direction to improve the heat exchange effect and heat exchange efficiency. Moreover, in this embodiment, the second water receiving tray 15 is located in the middle of the height between the first evaporator 12 and the second evaporator 14 in the vertical direction. This allows the existing integral evaporator, which is taller and has a larger overall area in the vertical direction, to be divided into the first evaporator 12 and the second evaporator 14, which are shorter and of equal height. This ensures that under the same operating conditions, the amount of condensate produced by the first evaporator 12 and the second evaporator 14 of equal height is not significantly different, thereby avoiding the accumulation of condensate in the corresponding first water receiving tray 13 and second water receiving tray 15.

[0044] To ensure the cleanliness of the condensate water supplied to the first humidifier 111 and the second humidifier 112, and to ensure the cleanliness of the humidified water, a filter screen 113 is provided at the outlet of the first water receiving tray 13 in this embodiment. The filter screen 113 can filter the condensate water flowing into the water storage tray 16, thereby ensuring the cleanliness of the condensate water in the water storage tray 16.

[0045] In order to ensure that the condensate in the first water receiving pan 13 flows quickly and smoothly into the water storage pan 16, the bottom end wall of the first water receiving pan 13 in this embodiment is provided with the aforementioned water outlet. The bottom end wall of the first water receiving pan 13 is inclined downward toward the water outlet, so that the condensate in the first water receiving pan 13 is completely guided to the water outlet by the downward inclination of the bottom end wall of the first water receiving pan 13 and flows into the water storage pan 16.

[0046] In order to monitor the water level of condensate in the water storage pan 16 in real time, the cabinet air conditioner indoor unit 10 in this embodiment also includes a first water level sensor 162. The first water level sensor 162 is installed in the water storage pan 16 and is used to monitor the water level of condensate in the water storage pan 16 in real time. Once the first water level sensor 162 detects that the water level of condensate in the water storage pan 16 exceeds the water storage capacity of the water storage pan 16, it controls the drain valve to open the drain outlet 161 of the water storage pan 16 and discharges it to the outside of the cabinet air conditioner indoor unit 10 through the drain pipe, so as to avoid the condensate in the water storage pan 16 from overflowing and affecting the operating performance of the cabinet air conditioner indoor unit 10.

[0047] In order to monitor the water level of condensate in the first drip tray 13 in real time, the indoor unit 10 of the cabinet air conditioner in this embodiment also includes a second water level sensor 17. The second water level sensor 17 is installed in the first drip tray 13 and is used to monitor the water level of condensate in the first drip tray 13 in real time. Once the second water level sensor 17 detects that the water level of condensate in the first drip tray 13 exceeds the water accumulation load of the first drip tray 13, it indicates that there is a blockage at the outlet of the first drip tray 13, thereby alarming the user to check, so as to avoid the bottom of the first evaporator 12 inserted in the first drip tray 13 being soaked by the condensate in the first drip tray 13.

[0048] The above embodiments are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles of this utility model patent application should be included within the scope of this utility model patent application.

Claims

1. A cabinet-type air conditioner indoor unit, comprising a casing, a first evaporator, and a first drip tray, wherein the first evaporator and the first drip tray are located inside the casing, and the first drip tray is vertically positioned directly below the first evaporator, with the bottom of the first evaporator inserted into the first drip tray, characterized in that: The indoor unit of the cabinet air conditioner also includes a second evaporator, a second water tray and a water storage tray located inside the casing. The second water tray is located directly below the second evaporator in the vertical direction and is located at the top of the first evaporator in the vertical direction. The bottom of the second evaporator is inserted into the second water tray. The second water receiving tray is connected to the first water receiving tray through a connecting pipe. The first water receiving tray has a water outlet, which is connected to the water storage tray. The water storage tray has a drain outlet, which is connected to a drain pipe. The water outlet of the drain pipe extends out of the machine casing.

2. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that: The indoor unit of the cabinet air conditioner also includes a first humidifier, a first control valve, a switching valve, a drain valve, and a booster pump located inside the casing. The second water receiving tray has a first water inlet, which is connected to the first water inlet of the first humidifier. The first control valve is located at the first water inlet to open or close the first water inlet, and the drain valve is located at the drain outlet to open or close the drain outlet. The connecting pipe includes a first pipe section, a second pipe section, and a third pipe section. The first port of the first pipe section is connected to the second water receiving tray. The second port of the first pipe section is connected to the first port of the second pipe section and the first port of the third pipe section. The second port of the second pipe section is connected to the first water receiving tray. The switching valve is installed on the second pipe section to control the connection or closure of the second pipe section. The second port of the third pipe section is connected to the outlet of the booster pump. The inlet of the booster pump is connected to the water storage tray.

3. The cabinet-type air conditioner indoor unit according to claim 2, characterized in that: The second water receiving tray has a through-hole on its peripheral wall. The first port of the first pipe section is connected to the through-hole, and the diameter of the first port of the first pipe section gradually increases towards the through-hole, forming a funnel shape.

4. The cabinet-type air conditioner indoor unit according to claim 2, characterized in that: The indoor unit of the cabinet air conditioner also includes a second humidifier and a second control valve located inside the casing. The second water tray has a second water inlet, which is connected to the second water inlet of the second humidifier. The second control valve is located at the second water inlet to open or close the second water inlet.

5. The cabinet-type air conditioner indoor unit according to claim 4, characterized in that: The bottom of the first humidifier is inserted into the first water receiving tray and supported on the bottom wall of the first water receiving tray, and the top of the first humidifier is supported on the bottom of the second water receiving tray; And / or, the bottom of the second humidifier is inserted into the first water receiving tray and supported on the bottom wall of the first water receiving tray, and the top of the second humidifier is supported on the bottom of the second water receiving tray; And / or, the first humidifier and the second humidifier are respectively located on opposite sides of the first evaporator in the horizontal direction, or the first humidifier and the second humidifier are respectively located on opposite sides of the second evaporator in the horizontal direction.

6. The cabinet-type air conditioner indoor unit according to claim 4, characterized in that: The first humidifier is a wet film humidifier; And / or, the second humidifier is a wet film humidifier.

7. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that: A filter screen is installed at the water outlet; And / or, the bottom end wall of the first water receiving tray is provided with the water outlet, and the bottom end wall of the first water receiving tray is inclined downward toward the water outlet.

8. The cabinet-type air conditioner indoor unit according to claim 1, characterized in that: The indoor unit of the cabinet air conditioner also includes a first water level sensor, which is installed in the water storage pan. And / or, the indoor unit of the cabinet air conditioner further includes a second water level sensor, which is disposed in the first water receiving tray.

9. The cabinet-type air conditioner indoor unit according to any one of claims 1 to 8, characterized in that: The water storage tray is located directly below the first water receiving tray in the vertical direction; And / or, the first evaporator and the second evaporator are arranged side by side in the vertical direction; And / or, the second water tray is located at the midpoint of the height between the first evaporator and the second evaporator in the vertical direction.

10. An air conditioner, including a cabinet-type indoor unit, characterized in that: The cabinet-type air conditioner indoor unit is any one of the cabinet-type air conditioner indoor units according to any one of claims 1 to 9.

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