Duct type air conditioner

Abstract

The utility model provides a duct type air conditioner. The duct type air conditioner comprises a machine body and a second water pan. An air outlet channel is formed in the machine body. A first water pan is arranged in the machine body. The second water pan is arranged on the lower side of the machine body. The projection of the machine body on the second water pan is located on the inner side of the second water pan. Heat exchange air flows in the air duct, the first water pan is arranged in the machine body and used for receiving condensate water generated in the machine body, when the condensate water leaks from the machine body due to installation and other reasons, the second water pan which is arranged outside the machine body and is large enough can receive the leaked condensate water, and therefore the problem that the condensate water of the duct type air conditioner leaks is basically eradicated.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, especially a kind of ducted air conditioner. BACKGROUND

[0002] Ducted air conditioner, mainly refers to ducted air conditioner, the evaporator bottom of ducted air conditioner is generally provided with water pan, for collecting the condensate water flowing on the surface of evaporator, then it is discharged outward by drain pipe. However, the installation condition of ducted air conditioner is generally more complex, complex installation condition can cause the static pressure of air duct to be inappropriate, the body installed with evaporator is not horizontal or the inclination angle of drain pipe is not enough and so on. The above problems can increase the risk of condensate leakage of ducted air conditioner. SUMMARY

[0003] In view of the above problems, the utility model is provided to provide a ducted air conditioner to overcome the above problems or at least partially solve the above problems, which can solve the problem of condensate leakage of ducted air conditioner, and achieve the effect of basically eliminating the condensate leakage of ducted air conditioner.

[0004] Specifically, the utility model provides a ducted air conditioner, comprising:

[0005] Body, air duct is constructed, first water pan is arranged in the body;

[0006] Second water pan, the second water pan is arranged on the lower side of the body; The projection of the body on the second water pan is inside the second water pan.

[0007] Optionally, the body is provided with air outlet assembly, the air outlet defined by the air outlet assembly is communicated with the air duct; The air outlet assembly is above the second water pan, so that the second water pan receives the water dripping from the air outlet assembly.

[0008] Optionally, the first water pan is connected with drain connection pipe, the drain connection pipe is connected with drain device;

[0009] The drain connection pipe is above the second water pan;

[0010] The connecting head between the drain connection pipe and the drain device is above the second water pan.

[0011] Optionally, the air outlet assembly is arranged at the front end of the body, the drain connection pipe is straight pipe, which extends backward from the first water pan and extends out of the body.

[0012] Optionally, the second water pan is inclined, and the inclination angle of the second water pan is 8° to 18°;

[0013] The second water pan is provided with a water outlet communicating with the drainage device, and the water outlet is arranged at the lowest position of the second water pan.

[0014] Optionally, the bottom wall of the second water pan is provided with a drainage groove, and the water outlet is arranged at the lowest position of the drainage groove.

[0015] The machining precision of the drainage groove is higher than that of the rest of the bottom wall of the second water pan.

[0016] The drainage groove comprises:

[0017] A first groove is arranged horizontally at the lower end of the bottom wall of the second water pan, and the water outlet is arranged at the middle of the first groove.

[0018] A second groove is arranged parallel to the first groove and at the upper end of the bottom wall of the second water pan.

[0019] Two third grooves are arranged in parallel, and each third groove is connected to one end of the first groove and the corresponding end of the second groove.

[0020] Two fourth grooves are connected to one end of the second groove and the middle of the first groove.

[0021] Optionally, the air pipe machine further comprises a drainage device, and the drainage device comprises:

[0022] A first drainage pipe communicates with the first water pan.

[0023] A second drainage pipe communicates with the second water pan.

[0024] A third drainage pipe has a first vertical section, a first horizontal section, a second vertical section and a drainage section connected in sequence; the first vertical section communicates the outlet of the first drainage pipe with the outlet of the second drainage pipe; the lower end of the first vertical section is connected to the first horizontal section; the first horizontal section is located below the outlets of the first water pan and the second water pan; the lower end of the second vertical section is connected to the first horizontal section, and the second vertical section is located below the outlets of the first water pan and the second water pan.

[0025] Optionally, the drainage device is provided with an air permeable pipe.

[0026] The air permeable pipe is connected to the upper end of the first vertical section.

[0027] The air vent pipe is vertically arranged, or the air vent pipe comprises a third vertical section and a second horizontal section connected in sequence, the second horizontal section is connected to the upper end of the first vertical section, and the lower end of the third vertical section is connected to the second horizontal section.

[0028] Optionally, the first drain pipe is arranged obliquely, and the lower end of the first drain pipe is connected to the upper end of the first vertical section.

[0029] The drain section is arranged below the second water receiving disc.

[0030] The air inlet of the air vent pipe is higher than the first water receiving disc.

[0031] Optionally, the inner side surface of the second water receiving disc is provided with a waterproof coating.

[0032] The outer side surface of the second water receiving disc is provided with a heat preservation layer.

[0033] In the air duct machine, the first water receiving disc is arranged in the machine body and used for receiving the condensed water generated in the machine body, when the condensed water leaks from the machine body due to installation or other reasons, the second water receiving disc arranged on the lower side of the machine body and large enough can receive the leaked condensed water, so that the condensed water leakage problem of the air duct machine is basically eliminated.

[0034] Further, the second water receiving disc arranged below the air outlet assembly can also receive the condensed water dripping from the surface of the air outlet assembly. This arrangement can greatly reduce the possibility of condensed water leakage generated by the air outlet assembly.

[0035] Further, the first vertical section, the first horizontal section and the second vertical section arranged below the outlet of the first water receiving disc and the outlet of the second water receiving disc form a U-shaped water return bend with the opening upward, the condensed water flowing back from the drain section can be stored at the bottom of the water return bend, that is, at the first horizontal section, and this arrangement can prevent the condensed water from flowing back to the second water receiving disc or the first water receiving disc during the drainage process.

[0036] Further, the condensed water dripping into the second water receiving disc flows into the drain groove and is then discharged through the water outlet. The drain groove can guide the condensed water to flow more smoothly.

[0037] Further, the first drain pipe is in communication with the atmosphere, so that the air pressure caused by the operation of the fan can be prevented from causing the condensed water to flow back.

[0038] Further, the inner side surface of the second water receiving disc is provided with a waterproof coating, so that the condensed water can be prevented from entering the interior of the second water receiving disc.

[0039] Further, the outer side surface of the second water pan is provided with a heat preservation layer. This arrangement can avoid condensate water from appearing on the outer side surface of the second water pan and dripping from the outer side surface of the second water pan, causing leakage.

[0040] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, when taken in conjunction with the annexed drawings. BRIEF DESCRIPTION OF DRAWINGS

[0041] Some embodiments of the present application will now be described in detail with reference to the drawings, which are provided by way of example and are not intended to limit the present application. Like reference numerals refer to corresponding parts throughout the drawings. It should be noted that the drawings are not necessarily to scale and that the exemplary nature of the present application will be more clearly understood from the following detailed description, when taken in conjunction with the attached drawings.

[0042] Figure 1 is a schematic structural view of an air duct machine according to one embodiment of the present application;

[0043] Figure 2 is a schematic structural view of a second water pan according to one embodiment of the present application;

[0044] Figure 3 is a schematic structural view of an air duct machine according to one embodiment of the present application. DETAILED DESCRIPTION

[0045] The air duct machine of the embodiments of the present application will be described below with reference to Figures 1 to 3 In the description of the present embodiments, it should be understood that the terms "first", "second", etc. are used only to describe and are not to be construed as indicating or implying relative importance or implying a specified number of technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features are not excluded and can further include other features.

[0046] Unless otherwise defined, the terms "set", "mount", "connected", "connecting", "fixed", "coupling" and the like are to be construed in their broadest possible sense, such as to include fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, or connections through intervening media; or connections between internal components of two elements, or interactions between two elements, unless otherwise explicitly defined. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0047] In addition, in the description of the present embodiment, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the present embodiment, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" or "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0048] In the description of the present embodiment, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] A ducted air conditioner is a kind of air conditioner, also known as ducted air conditioner, air conditioner ducted air conditioner or ducted air conditioner, etc. The ducted air conditioner is widely used due to its unique advantages, and is commonly used in restaurants, central office buildings and single-family homes. The ducted air conditioner is usually hidden in the ceiling during installation, does not occupy the ground space, can better integrate with the decoration, has the advantages of installation aesthetics, space saving and cost-effective, and is more and more favored by home users, and the market share is increasing. The evaporator of the ducted air conditioner is generally provided with a water pan at the bottom for collecting the condensed water flowing down from the surface of the evaporator, and then the condensed water is discharged outside through a drain pipe. However, since the ducted air conditioner is usually hidden in the ceiling during installation, the installation of the ducted air conditioner is generally complex, and the complex installation may cause problems such as improper static pressure of the air duct of the ducted air conditioner, non-horizontal installation of the body with the evaporator, or insufficient inclination angle of the drain pipe. The above problems will increase the risk of condensed water leakage of the ducted air conditioner. In view of the above problems, the utility model is provided to overcome the above problems or at least partially solve the above problems.

[0050] Figure 1 is a schematic structural diagram of a ducted air conditioner according to an embodiment of the utility model. As shown in Figure 1 , and referring to Figures 2 to 3 , the utility model embodiment provides a ducted air conditioner, which comprises a body 10 and a second water pan 30. The body is constructed as an air duct, and the first water pan 20 is arranged in the body 10. The second water pan 30 is arranged on the lower side of the body 10. The projection of the body 10 on the second water pan 30 is inside the second water pan 30.

[0051] The heat exchange air flows in the air duct, the first water pan 20 is arranged in the body 10, and is used for receiving the condensed water generated in the body 10. When the condensed water leaks from the body 10 due to installation or other reasons, the second water pan 30 arranged on the lower side of the body 10 is large enough to receive the leaked condensed water, thereby basically eliminating the problem of condensed water leakage of the ducted air conditioner.

[0052] In some embodiments of the utility model, as shown in Figure 1 , the body 10 is provided with an air outlet assembly 40, and the air outlet defined by the air outlet assembly 40 is in communication with the air duct. The air outlet assembly 40 is above the second water pan 30, so that the second water pan 30 can receive the water dripping from the air outlet assembly 40.

[0053] The heat exchange air blows out from the air outlet of the air outlet assembly after passing through the air duct, so in addition to the surface of the evaporator, the surface of the air outlet assembly 40 will also generate condensed water, and the second water pan arranged below the air outlet assembly can also receive the condensed water dripping from the surface of the air outlet assembly 40. This arrangement can greatly reduce the possibility of condensed water leakage from the air outlet assembly.

[0054] In some embodiments of the present application, as shown in Figure 1 The drain connecting pipe is connected with the drain device. The connecting head between the drain connecting pipe and the drain device is above the second water pan 30.

[0055] The drain connecting pipe is connected with the first water pan 20, and the condensed water in the first water pan 20 is guided out by the drain connecting pipe and discharged to the outdoor through the drain device. The connection between the drain connecting pipe and the first water pan 20 or the connecting head between the drain connecting pipe and the drain device is prone to water leakage due to connection sealing failure. The drain connecting pipe and the connecting head between the drain connecting pipe and the drain device are both above the second water pan 30, which can ensure that the leaked condensed water can be received by the second water pan 30 when the connection between the drain connecting pipe and the first water pan 20 or the connecting head between the drain connecting pipe and the drain device leaks, and no leakage occurs.

[0056] In some embodiments of the present application, as shown in Figure 3 The drain connecting pipe is a straight pipe, extending rearward from the first water pan 20 and out of the machine body 10. That is, the air duct machine has an air outlet at the front end of the machine body, and the air outlet faces forward. The drain connecting pipe faces rearward, and the drain is discharged from the rear of the machine body. The above arrangement can make the air outlet assembly 40 and the drain connecting pipe not interfere with each other, and is more conducive to the structural layout of the air duct machine. Moreover, the drain connecting pipe is a straight pipe, which facilitates the flow of condensed water and prevents blockage.

[0057] In some embodiments of the present application, the second water pan 30 is inclined, and the inclination angle of the second water pan 30 is 8° to 18°. For example, the inclination angle of the second water pan 30 is 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, or 18°. The second water pan 30 is provided with a water outlet 62 communicating with the drain device, and the water outlet 62 is arranged at the lowest position of the second water pan 30.

[0058] The inclined arrangement of the second water pan 30 is conducive to the collection of the condensed water falling into the second water pan 30 to the lower end of the second water pan 30, and the arrangement of the water outlet 62 at the lowest position of the second water pan 30 can ensure that the condensed water collected at the lower end of the second water pan 30 can be completely discharged.

[0059] In some embodiments of the present application, the upper end of the second water pan 30 is on the front side of the lower end of the second water pan 30.

[0060] In some embodiments of the utility model, the bottom wall of the second water pan 30 is provided with a drainage groove, and the water outlet 62 is located at the lowest position of the drainage groove.

[0061] The condensed water dropped into the second water pan 30 flows into the drainage groove and is then discharged through the water outlet 62. The drainage groove can guide the condensed water, so that the condensed water can be discharged more smoothly.

[0062] In some embodiments of the utility model, the machining precision of the drainage groove is higher than that of the rest of the bottom wall of the second water pan 30.

[0063] The high machining precision of the drainage groove makes the resistance of the condensed water flowing in the drainage groove small, which is conducive to the rapid discharge of the condensed water.

[0064] In some embodiments of the utility model, as shown in Figure 2 The drainage groove includes a first groove 61, a second groove 63, two third grooves 64 and two fourth grooves 65. The first groove 61 is horizontally arranged at the lower end of the bottom wall of the second water pan 30, and the water outlet 62 is arranged at the middle part of the first groove 61. The second groove 63 is arranged in parallel with the first groove 61 and is located at the upper end of the bottom wall of the second water pan 30. The two third grooves 64 are arranged in parallel, and each third groove 64 is connected to one end of the first groove 61 and a corresponding end of the second groove 63. Each fourth groove 65 is connected to one end of the second groove 63 and the middle part of the first groove 61.

[0065] The first groove 61, the second groove 63 and the two third grooves located at the edge of the second water pan 30 are conducive to guiding the water around the second water pan, and the two fourth grooves 65 located at the middle part of the second water pan 30 are conducive to guiding the water in the middle part of the second water pan. The condensed water in the second water pan 30 is guided through the first groove 61, the second groove 63, the two third grooves 64 and the two fourth grooves 65, and finally flows into the water outlet and is discharged.

[0066] In some embodiments of the utility model, as shown in Figure 1As shown, the drain device comprises a first drain pipe 51, a second drain pipe 52 and a third drain pipe. The first drain pipe 51 is in communication with the first water pan 20. The second drain pipe 52 is in communication with the second water pan 30. The third drain pipe has a first vertical section 53, a first horizontal section 54, a second vertical section 55 and a drain section 56 connected in sequence. The first vertical section 53 is in communication with the outlet of the first drain pipe 51 and the outlet of the second drain pipe 52. The lower end of the first vertical section 53 is connected to the first horizontal section 54. The first horizontal section 54 is located at the lower side of the outlet of the first water pan 20 and the outlet of the second water pan 30. The lower end of the second vertical section 55 is connected to the first horizontal section 54. The second vertical section 55 is located at the lower side of the outlet of the first water pan 20 and the outlet of the second water pan 30.

[0067] The condensed water in the first water pan 20 flows to the first drain pipe 51 and then enters the first vertical section 53 through the first drain pipe 51. The condensed water in the second water pan 30 flows to the second drain pipe 52 and then enters the first vertical section 53 through the second drain pipe 52. The condensed water in the first water pan 20 and the condensed water in the second water pan 30 are collected in the first vertical section 53, then pass through the first horizontal section and then pass through the second vertical section 55 and are discharged from the drain section 56. The first vertical section 53, the first horizontal section 54 located at the lower side of the outlet of the first water pan 20 and the outlet of the second water pan 30 and the second vertical section 55 form a backwater bend with an upward opening, similar to a U shape. The condensed water flowing back from the drain section is stored at the bottom of the backwater bend, that is, at the first horizontal section. This arrangement can prevent the condensed water from flowing back to the second water pan or the first water pan during the drainage process.

[0068] In some embodiments of the present application, a ventilation pipe is arranged on the drain device. The ventilation pipe is connected to the upper end of the first vertical section 53.

[0069] During the operation of the ducted air conditioner, negative pressure may occur in the first drain pipe 51, causing the condensed water in the first drain pipe 51 to flow back. The flow guide ventilation pipe is arranged to connect the first drain pipe 51 to the atmosphere, preventing the air pressure caused by the operation of the ducted air conditioner from causing the condensed water to flow back.

[0070] In some embodiments of the present application, the ventilation pipe is vertically arranged. The vertically arranged ventilation pipe is convenient to process and install.

[0071] In some other embodiments of the present application, the ventilation pipe comprises a third vertical section 57 and a second horizontal section 58 connected in sequence. The second horizontal section 58 is connected to the upper end of the first vertical section 53. The lower end of the third vertical section 57 is connected to the second horizontal section 58. That is, a horizontal section is added to the vertical section, facilitating the connection of the ventilation pipe.

[0072] In some embodiments of the present application, as shown in FIG. 1, the ventilation pipe is connected to the first vertical section 53. Figure 1As shown, the first drain pipe 51 is arranged obliquely, and the lower end of the first drain pipe 51 is connected to the upper end of the first vertical section 53. The oblique arrangement of the first drain pipe 51 is beneficial to the discharge of condensed water and also makes the condensed water in the first drain pipe 51 not easy to flow back.

[0073] In some embodiments of the utility model, as shown in the figure, Figure 3 As shown, the first drain pipe 51 can also be arranged horizontally.

[0074] In some embodiments of the utility model, the drainage section 56 is arranged lower than the second water pan 30. This arrangement can ensure that when the condensed water in the water return bend is full, the condensed water will only be discharged from the drainage section 56 and will not flow back to the second water pan 30.

[0075] In some embodiments of the utility model, the air inlet 59 of the air pipe is higher than the first water pan 20. This arrangement can avoid the water in the first water pan 20 from blocking the air inlet 59 of the air pipe, causing the air pipe to not function as a corresponding air passage.

[0076] In some embodiments of the utility model, the inner side surface of the second water pan 30 is provided with a waterproof coating, which can prevent condensed water from entering the interior of the second water pan 30.

[0077] Further, in some embodiments of the utility model, the waterproof coating can be a polyurethane waterproof coating. The polyurethane waterproof coating has the characteristics of high strength, large elongation, good water resistance, etc., and can be used for waterproof treatment of the inner side surface of the second water pan 30, reducing the phenomenon that the inner side surface of the second water pan 30 is easily permeated by water vapor, causing the strength of the inner side surface of the second water pan 30 to be eroded and damaged.

[0078] In some embodiments of the utility model, the outer side surface of the second water pan 30 is provided with a thermal insulation layer. The thermal insulation layer can insulate heat to reduce the loss of heat to the outside. This arrangement can avoid the occurrence of condensed water on the outer side surface of the second water pan 30 and dripping from the outer side surface of the second water pan 30, causing leakage.

[0079] Further, in some embodiments of the utility model, the thermal insulation layer can be thermal insulation cotton, which is low in cost and widely available.

[0080] Further, in some embodiments of the utility model, the thermal insulation layer is attached to the outer side surface of the second water pan 30.

[0081] In some embodiments of the present application, the ducted air conditioner includes an indoor unit and an outdoor unit. The indoor unit is usually installed indoors and is responsible for delivering cold or heat to the indoor space. The indoor unit mainly includes an evaporator, a fan and a filter. The evaporator, fan and filter are all arranged in the air duct, and the first water pan is located at the lower side of the evaporator to receive the condensed water left by the evaporator. The evaporator is the core component of the indoor unit, which absorbs the heat in the room through the circulation of refrigerant, thereby achieving the purpose of cooling. The fan is responsible for sending the cold air treated by the evaporator into the room to ensure air circulation. The filter is used to filter impurities in the air to ensure that the air sent into the room is clean and healthy. The outdoor unit is usually installed outdoors and is mainly responsible for the circulation and heat dissipation of the refrigerant. It mainly includes a compressor, a condenser and an expansion valve. The compressor is the power source of the outdoor unit, which is responsible for compressing the refrigerant into high-pressure gas and sending it into the condenser to cool it into liquid. The compressor is the core of the whole system, which drives the circulation of refrigerant between the indoor and outdoor units. The condenser is responsible for cooling the high-temperature and high-pressure refrigerant discharged by the compressor into liquid state so as to enter the evaporator again for heat absorption. The expansion valve plays a role in adjusting the flow of refrigerant to ensure stable operation of the refrigeration system. After passing through the expansion valve, the liquid refrigerant decreases in pressure and increases in flow, and finally flows into the evaporator to exchange heat with the air.

[0082] At this point, those skilled in the art should recognize that although the present application has been shown and described in detail in this paper, many other variants or modifications conforming to the principles of the present application can be directly determined or deduced according to the content disclosed in the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variants or modifications.

Claims

1. A ducted fan machine characterized by, Comprising: a machine body configured to form an air duct, a first water pan being arranged in the machine body; a second water pan arranged on the lower side of the machine body; the projection of the machine body on the second water pan is inside the second water pan.

2. The ducted air conditioner according to claim 1, wherein an air outlet assembly is arranged on the machine body, the air outlet defined by the air outlet assembly being in communication with the air duct; the air outlet assembly is above the second water pan, so that the second water pan can collect water dripping from the air outlet assembly.

3. The ducted air conditioner according to claim 2, wherein a drain connection pipe is connected to the first water pan, and a drain device is connected to the drain connection pipe; the drain connection pipe is above the second water pan; the connection between the drain connection pipe and the drain device is above the second water pan.

4. The ducted air conditioner according to claim 3, wherein the air outlet assembly is arranged at the front end of the machine body, and the drain connection pipe is a straight pipe extending rearward from the first water pan and out of the machine body.

5. The ducted air conditioner according to claim 1, wherein the second water pan is arranged at an angle, and the angle of the second water pan is 8° to 18°; a water outlet in communication with the drain device is arranged on the second water pan, and the water outlet is arranged at the lowest position of the second water pan.

6. The ducted air conditioner according to claim 5, wherein a drain groove is arranged on the bottom wall of the second water pan, and the water outlet is at the lowest position of the drain groove; the machining precision of the drain groove is higher than that of the rest of the bottom wall of the second water pan; the drain groove comprises: a first groove horizontally arranged at the lower end of the bottom wall of the second water pan, and the water outlet is arranged at the middle of the first groove; a second groove arranged in parallel with the first groove and at the upper end of the bottom wall of the second water pan; two third grooves arranged in parallel, each connected to one end of the first groove and the corresponding end of the second groove; two fourth grooves, each connected to one end of the second groove and the middle of the first groove.

7. The ducted fan machine of claim 1, wherein, Further comprising a drain device, the drain device comprising: a first drain pipe in communication with the first water pan; a second drain pipe in communication with the second water pan, a third drain pipe having a first vertical section, a first horizontal section, a second vertical section and a drain section connected in sequence; the first vertical section communicates the outlet of the first drain pipe and the outlet of the second drain pipe; the lower end of the first vertical section is connected to the first horizontal section; the first horizontal section is below the outlets of the first water pan and the second water pan; the lower end of the second vertical section is connected to the first horizontal section, and the second vertical section is below the outlets of the first water pan and the second water pan.

8. The ducted air conditioner according to claim 7, wherein The drain device is provided with a gas-permeable pipe; The gas-permeable pipe is connected to the upper end of the first vertical section; The gas-permeable pipe is vertically arranged, or the gas-permeable pipe comprises a third vertical section and a second horizontal section connected in sequence, the second horizontal section is connected to the upper end of the first vertical section, and the lower end of the third vertical section is connected to the second horizontal section.

9. The ducted air conditioner according to claim 8, wherein The first drain pipe is arranged obliquely, and the lower end of the first drain pipe is connected to the upper end of the first vertical section; The drain section is arranged lower than the second water pan; The air inlet of the gas-permeable pipe is higher than the first water pan.

10. The ducted air conditioner according to claim 1, wherein The inner side surface of the second water pan is provided with a waterproof coating, The outer side surface of the second water pan is provided with a heat preservation layer.

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