CN210861425U - Mobile air conditioner - Google Patents

Abstract

The utility model discloses a mobile air conditioner, include: the water receiving device comprises a chassis, a lower air duct assembly, an upper air duct assembly, a middle water receiving tray and an upper water receiving tray. The lower air duct assembly is arranged on the chassis and comprises a lower air duct heat exchanger, a lower volute and a lower air duct wind wheel arranged in the lower volute, the upper air duct assembly is arranged above the lower air duct assembly and comprises an upper air duct heat exchanger, an upper volute and an upper air duct wind wheel arranged in the upper volute, the middle water receiving disc is arranged between the upper air duct assembly and the lower air duct assembly and is suitable for discharging water to the lower air duct heat exchanger, the upper water receiving disc is arranged at the top of the upper air duct assembly and is suitable for discharging water to the middle water receiving disc. According to the utility model discloses portable air conditioner can discharge a large amount of comdenstion water drainage fast effectively, and this portable air conditioner's drainage route is reliable, can reduce the risk in the automatically controlled part of comdenstion water in the in-process flow into fuselage from top to bottom drainage, improves the reliability of work.

Description

Mobile air conditioner

Technical Field

The utility model belongs to the technical field of air conditioning equipment technique and specifically relates to a portable air conditioner is related to.

Background

In the related art, a mobile air conditioner generates a large amount of condensed water during operation, especially during cooling. If a large amount of condensed water is drained in time, the performance of the mobile air conditioner is affected, and the working efficiency is reduced. Furthermore, the generated condensed water may flow into related components of the mobile air conditioner, such as an electric control, and the like, thereby reducing the reliability of the mobile air conditioner.

However, the condensed water of the mobile air conditioner in the related art is usually collected by the bottom chassis, and usually only a small amount of condensed water can be drained to the chassis by the body, and a large amount of condensed water cannot be drained in time. In addition, the condensed water flows into the electric control component of the machine body easily in the process of flowing from top to bottom along the machine body, and the reliability of the mobile air conditioner is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a mobile air conditioner, which can drain a large amount of condensed water quickly and effectively, and the drainage path of the mobile air conditioner is reliable, so as to reduce the risk of the condensed water flowing into the electric control component in the machine body during the process of draining from top to bottom, thereby improving the reliability of the operation.

According to the utility model discloses mobile air conditioner, include: a chassis; the lower air duct assembly is arranged on the chassis and comprises a lower air duct heat exchanger, a lower volute and a lower air duct wind wheel arranged in the lower volute, and condensed water on the lower air duct assembly is suitable for being collected in the chassis; the upper air duct assembly is arranged above the lower air duct assembly and comprises an upper air duct heat exchanger, an upper volute and an upper air duct wind wheel arranged in the upper volute; the middle water pan is arranged between the upper air duct assembly and the lower air duct assembly, is used for receiving condensed water on the upper air duct assembly, and is suitable for discharging water to the lower air duct heat exchanger; the upper water receiving tray is arranged at the top of the upper air duct assembly and used for collecting condensed water at the top of the upper air duct assembly, and the upper water receiving tray is suitable for discharging water to the middle water receiving tray.

According to the utility model discloses portable air conditioner, set up the water collector through the top at last wind channel subassembly, set up middle water collector simultaneously between last wind channel subassembly and lower wind channel subassembly, and set up the chassis in the bottom of wind channel subassembly down, from this at portable air conditioner during operation, the comdenstion water at the top of last wind channel subassembly can be collected to the water collector, the comdenstion water that the upper wind channel subassembly produced can be collected to middle water collector, the comdenstion water of collecting in the upper water collector can be discharged to middle water collector, the comdenstion water of collecting in the middle water collector can flow in the chassis through lower wind channel heat exchanger, make the complete machine have three-layer water receiving structure from top to bottom, and the water receiving structure that is located the top can be with the water drainage water and be located the water receiving structure of below, thereby can discharge a large amount of comdenstion water drainage fast effectively. And the drainage path of the mobile air conditioner is reliable, the risk that condensed water flows into an electric control component in the machine body in the process of drainage from top to bottom can be reduced, and the working reliability is improved.

According to some embodiments of the utility model, go up the air outlet orientation of spiral case, go up the water collector and be located go up the front side of wind channel heat exchanger and be close to go up the air outlet of spiral case.

Optionally, the upper water pan and the air outlet of the upper volute are arranged in the left-right direction.

According to some embodiments of the utility model, go up the water collector with go up spiral case detachably and link to each other.

According to some embodiments of the utility model, the bottom of going up the water collector be formed with go up the water collector of water collector intercommunication, be formed with first drainage hole on the diapire of water collector, first drainage hole is suitable for with the log raft extremely middle water collector.

Optionally, the inner wall of the water collection tank comprises: a drain wall which is the lowest part of the wall of the water collection tank, the first drain hole being formed on the drain wall; the guide wall is connected with the drainage wall, and extends towards the direction adjacent to the drainage wall in an inclined manner in the direction from top to bottom.

Optionally, a water guide rib plate is arranged on the outer side wall of the upper volute, the water guide rib plate is located below the first water drainage hole to receive water drained from the first water drainage hole, the outer side wall of the upper volute comprises a guide side wall, the guide side wall extends towards a direction away from the center of the upper volute in a direction from top to bottom, and the water guide rib plate extends downwards and obliquely to guide water to the guide side wall in a direction from the first water drainage hole to the guide side wall.

Furthermore, the circumference of the water guide rib plate is provided with a water guide rib plate, the water guide rib plate extends along the circumference of the water guide rib plate, the two opposite ends of the water guide rib plate in the circumference direction define a water guide opening, and water on the water guide rib plate is suitable for being discharged to the guide side wall through the water guide opening.

Optionally, an air outlet of the upper volute is directed upward, the upper water pan is located on the front side of the upper duct heat exchanger and adjacent to the air outlet of the upper volute, and the water collecting tank is located at one end of the upper water pan, which is far away from the air outlet of the upper volute.

According to some embodiments of the utility model, be formed with the first installation department that is used for installing the wind channel motor on the lateral wall of last spiral case, go up the wind channel motor with it links to each other to go up the wind channel wind wheel, it is equipped with first waterproof construction on the lateral wall of spiral case to go up, first waterproof construction is close to first installation department, first waterproof construction is used for leading water extremely middle water collector, first waterproof construction includes: the first water guide rib is positioned right above the first mounting part, and extends downwards in an inclined manner in the direction from the middle of the first water guide rib to the two ends of the first water guide rib; the water guide device comprises two first longitudinal water retaining ribs, wherein the two first longitudinal water retaining ribs are positioned on two opposite sides of the first water guide rib, each first longitudinal water retaining rib extends along the up-down direction, and the upper ends of the two first longitudinal water retaining ribs are connected with two ends of the first water guide rib respectively.

Optionally, the first water guiding rib includes two first sub water guiding ribs connected along an extending direction of the first water guiding rib, the two first sub water guiding ribs both extend along a straight line, and each first sub water guiding rib extends obliquely downward in a direction from a joint of the two first sub water guiding ribs to a joint of the first sub water guiding rib and the first longitudinal water blocking rib.

Optionally, the lower end of the first longitudinal water blocking rib extends to the bottom of the upper volute.

According to some embodiments of the utility model, the diapire of middle water collector with the relative part orientation undercut of lower wind channel heat exchanger is in order to form the catchment area, the catchment area is formed with the second wash port.

Optionally, the second drainage holes are arranged at intervals, the water collecting area is provided with a first overflow hole, the cross-sectional area of the first overflow hole is larger than that of the second drainage hole, the upper periphery of the second drainage hole is provided with a first baffle portion extending upwards, the first baffle portion extends along the circumferential direction of the second drainage hole and is annular, the upper periphery of the first overflow hole is provided with a second baffle portion extending upwards, the second baffle portion extends along the circumferential direction of the first overflow hole and is annular, and the height of the second baffle portion is larger than that of the first baffle portion.

Optionally, a third baffle portion extending downward is formed on the lower periphery of the second drain hole, and the third baffle portion extends along the periphery of the second drain hole and is annular.

According to the utility model discloses a some embodiments, be formed with the second installation department that is used for installing lower wind channel motor on the lateral wall of spiral case down, lower wind channel motor with lower wind channel wind wheel links to each other, be equipped with second waterproof construction on the lateral wall of spiral case down, second waterproof construction is close to the second installation department, second waterproof construction is used for leading water to the chassis, second waterproof construction includes: the second water guide rib is positioned right above the second mounting part, and extends obliquely downwards in the direction from the middle of the second water guide rib to the two ends of the second water guide rib; the two second longitudinal water retaining ribs are positioned on two opposite sides of the second water guiding rib, each second longitudinal water retaining rib extends along the up-down direction, and the upper ends of the two second longitudinal water retaining ribs are connected with two ends of the second water guiding rib respectively.

Optionally, the second water guide rib includes two second sub water guide ribs connected along an extending direction of the second water guide rib, the two second sub water guide ribs both extend along a straight line, and each second sub water guide rib extends obliquely downward in a direction from a joint of the two second sub water guide ribs to a joint of the second sub water guide rib and the second longitudinal water blocking rib.

Optionally, the lower end of the second longitudinal water-blocking rib extends to the bottom of the lower volute.

According to some embodiments of the utility model, the chassis has compressor district, water receiving district and lower volute district that arranges in proper order along left and right direction, portable air conditioner's compressor is located the compressor district, the spiral case is located down the volute district, the water receiving district is formed with the water receiving tank that extends along the fore-and-aft direction, the bottom of wind channel heat exchanger is located down in the water receiving tank, be formed with on the lateral wall in water receiving district with the third wash port of water receiving tank intercommunication, the third wash port is located one side on the length direction of water receiving tank just be close to on the length direction of water receiving tank in the direction of third wash port, the diapire height of water receiving tank reduces gradually.

Optionally, a water drainage groove is formed in the water receiving area, the water drainage groove is located on one side of the water receiving groove in the length direction and is adjacent to the third water drainage hole, the water drainage groove and the water receiving groove are separated by a partition plate, the third water drainage hole is communicated with the water drainage groove, a water through hole communicated with the water receiving groove and the water drainage groove is formed in the partition plate, a water guide groove extending in the front-back direction is formed in the bottom wall of the water receiving groove, and the water guide groove extends to the water through hole.

Furthermore, a water fetching groove is formed in the bottom wall of the water receiving groove, a water fetching wheel is arranged in the water fetching groove to scatter water to the lower air duct heat exchanger, the water fetching groove is adjacent to the water drainage groove, and the water guide groove penetrates through the water fetching groove.

Furthermore, a second overflow hole is formed in the side wall of the drainage groove and is higher than the third drainage hole, a water pumping motor groove used for accommodating a water pumping motor is formed in the chassis, a matching groove matched with a motor shaft of the water pumping motor is formed in the side wall of the water receiving groove, the motor shaft is connected with the water pumping wheel, and the lowest part of the bottom wall of the matching groove is higher than the lowest part of the bottom wall of the second overflow hole.

Optionally, a support rib for supporting the lower air duct heat exchanger is arranged in the water receiving tank, and the upper end face of the support rib is lower than the upper end face of the side wall of the water receiving tank.

Furthermore, at least one of the support ribs is a long support rib extending in the front-back direction, two ends of the long support rib in the length direction are respectively connected with two side walls of the water receiving tank in the length direction, the long support rib is spaced from the side walls of the water receiving tank in the width direction, a communication notch is formed in the long support rib, and the communication notch is communicated with the parts, located on two sides of the water receiving tank in the thickness direction, of the long support rib.

Optionally, a fourth drain hole is formed on at least one of the side wall of the compressor region and the side wall of the lower volute region; or at least one of the bottom wall of the compressor area and the bottom wall of the lower volute area is provided with a drainage groove, and the drainage groove is used for draining water into the water receiving groove.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an internal structure of a mobile air conditioner according to some embodiments of the present invention;

fig. 2 is a partial schematic structural view of a mobile air conditioner according to some embodiments of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is an enlarged view at C in FIG. 2;

fig. 6 is a plan view of a partial structure of a mobile air conditioner according to some embodiments of the present invention;

FIG. 7 is an enlarged view at D of FIG. 6;

fig. 8 is a schematic view of a lower volute and an intermediate water pan of a mobile air conditioner according to some embodiments of the present invention;

FIG. 9 is an enlarged view at E in FIG. 8;

fig. 10 is a schematic view of a chassis of a mobile air conditioner according to some embodiments of the present invention;

fig. 11 is an enlarged view at F in fig. 10.

Reference numerals:

an upper duct assembly 100; an upper volute casing 1; a first mounting portion 11; an air outlet 12; a guide side wall 13; a water guide rib plate 14; a water retaining rib plate 15; a water guide opening 151; a first water guide rib 16; the first sub water guide bead 161; a first longitudinal water-retaining rib 17; an upper duct heat exchanger 2;

a lower duct assembly 300; a lower volute 3; a second mounting portion 31; the second water guide bead 32; the second sub water guide bead 321; a second longitudinal water-retaining rib 33; a lower air duct heat exchanger 4;

an upper water pan 500; a water collection tank 5; the guide wall 51; a drain wall 52; a first drain hole 521;

an intermediate drip pan 600; a water collection area 6; a second drain hole 61; the first fence portion 611; a first overflow hole 62; a second containment portion 621; a first drain pipe 63;

a chassis 700; a compressor zone 7; a lower volute zone 8; a water receiving area 9; a water receiving tank 91; a water guide groove 911; a water tank 912; support ribs 913; long support ribs 914; a communication gap 9141; a drain tank 92; a partition plate 93; a water passage hole 931; the second overflow holes 94; a water beating motor tank 95; a mating groove 96; a second drain pipe 97;

a compressor 800.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A mobile air conditioner according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 and 2, a mobile air conditioner according to an embodiment of the present invention includes: the water pan comprises a chassis 700, a lower air duct assembly 300, an upper air duct assembly 100, a middle water pan 600 and an upper water pan 500.

The lower air duct assembly 300 is arranged on the chassis 700, the lower air duct assembly 300 comprises a lower air duct heat exchanger 4, a lower volute 3 and a lower air duct wind wheel arranged in the lower volute 3, the condensed water on the lower air duct assembly 300 is suitable for being collected in the chassis 700, and the condensed water on the lower air duct assembly 300 can flow downwards into the chassis 700 under the action of gravity.

The upper air duct assembly 100 is arranged above the lower air duct assembly 300, and the upper air duct assembly 100 comprises an upper air duct heat exchanger 2, an upper volute 1 and an upper air duct wind wheel arranged in the upper volute 1. The middle water pan 600 is disposed between the upper duct assembly 100 and the lower duct assembly 300, the middle water pan 600 is used for receiving the condensed water on the upper duct assembly 100, and the middle water pan 600 is suitable for discharging the water to the lower duct heat exchanger 4. The condensed water on the upper air duct assembly 100 may flow downward into the intermediate water-receiving tray 600 under the action of gravity, and the condensed water collected in the intermediate water-receiving tray 600 may be drained downward into the base plate 700.

The upper water pan 500 is disposed on the top of the upper duct assembly 100, the upper water pan 500 is used for collecting condensed water on the top of the upper duct assembly 100, and the upper water pan 500 is suitable for discharging water to the middle water pan 600. When there is the comdenstion water at the top of last wind channel subassembly 100 and this comdenstion water is difficult for directly flowing into middle water collector 600 downwards through the action of gravity, can collect the comdenstion water at the top of last wind channel subassembly 100 through the last water collector 500 that sets up, can improve the drainage discharge efficiency of the comdenstion water at the top of last wind channel subassembly 100. In addition, the condensed water at the top of the upper air duct assembly 100 is collected in the upper water pan 500 rather than directly flowing downwards through the body to the middle water pan 600 or the chassis 700, so that the risk that the condensed water flows into the electric control component in the body in the process of flowing downwards from the highest position can be reduced, and the reliability is improved.

Alternatively, the mobile air conditioner may be a single cooling type air conditioner, or may be a cooling and heating type air conditioner.

For example, in the case of a mobile air conditioner, the upper duct heat exchanger 2 functions as an evaporator and the lower duct heat exchanger 4 functions as a condenser. The temperature of the upper duct assembly 100 is relatively low, and a large amount of condensed water is likely to be generated on the upper duct assembly 100. The condensed water generated on the upper air duct heat exchanger 2 may flow downward into the intermediate water pan 600 under the action of gravity, the condensed water generated on the upper volute 1 may flow downward into the intermediate water pan 600 along the side wall of the upper volute 1, and the condensed water at the top of the upper air duct assembly 100 (e.g., the condensed water at the top of the upper volute 1) may be collected in the upper water pan 500. The condensed water collected in the upper drip tray 500 may be drained downward into the middle drip tray 600. The condensate produced by the upper duct assembly 100 may eventually collect in the intermediate drip tray 600.

The condensed water in the middle water pan 600 can be discharged downwards to the lower air duct heat exchanger 4, and the condensed water is drained downwards to the bottom plate 700 along the lower air duct heat exchanger 4. If a small amount of condensed water on the upper duct assembly 100 may fall onto the lower scroll casing 3 due to shaking of the mobile air conditioner, etc., the condensed water falling onto the lower scroll casing 3 may be drained into the base plate 700 through the lower scroll casing 3 itself. When the amount of water in the base pan 700 is large, the condensed water may be discharged from a drain pipe or the like provided in the base pan 700.

For example, in the case of heating in a mobile air conditioner, the upper duct heat exchanger 2 functions as a condenser and the lower duct heat exchanger 4 functions as an evaporator. At this time, the condensed water is mainly generated on the lower duct assembly 300, the condensed water on the lower duct heat exchanger 4 may flow downward into the chassis 700 along the lower duct heat exchanger 4, and the condensed water on the lower volute 3 may flow downward into the chassis 700 through the sidewall of the lower volute 3.

Therefore, the utility model discloses a movable air conditioner is through setting up three-layer water receiving structure about, can carry out quick effectual collection and drainage to a large amount of comdenstion water that movable air conditioner work produced, and the water receiving structure that is located the top can be with the water receiving structure of log raft income below to can discharge a large amount of comdenstion water drainage effectively fast, improve work efficiency. And the drainage path of the mobile air conditioner is reliable, the risk that condensed water flows into an electric control component in the machine body in the process of drainage from top to bottom can be reduced, and the working reliability is improved.

According to the mobile air conditioner of the embodiment of the present invention, the upper water pan 500 is disposed on the top of the upper air duct assembly 100, the middle water pan 600 is disposed between the upper air duct assembly 100 and the lower air duct assembly 300, and the bottom of the lower air duct assembly 300 is disposed with the bottom plate 700, so that when the mobile air conditioner is in operation, the upper water pan 500 can collect the condensate water on the top of the upper air duct assembly 100, the middle water pan 600 can collect the condensate water generated by the upper air duct assembly 100, the condensate water collected in the upper water pan 500 can be discharged into the middle water pan 600, the condensate water collected in the middle water pan 600 can flow into the bottom plate 700 through the lower air duct heat exchanger 4, so that the whole air conditioner has a three-layer water receiving structure from top to bottom, and the water receiving structure above can drain water into the water receiving structure below, thereby draining a large amount of condensate water quickly and effectively, the working efficiency is improved. And the drainage path of the mobile air conditioner is reliable, the risk that condensed water flows into an electric control component in the machine body in the process of drainage from top to bottom can be reduced, and the working reliability is improved.

According to some embodiments of the present invention, referring to fig. 1 and 2, the air outlet 12 of the upper spiral case 1 faces upward, and the upper water pan 500 is located at the front side of the upper duct heat exchanger 2 and adjacent to the air outlet 12 of the upper spiral case 1. Therefore, by locating the upper water tray 500 at the front side of the upper duct heat exchanger 2, the upper water tray 500 can effectively collect the condensed water at the top of the upper scroll 1. In addition, the upper water pan 500 is adjacent to the air outlet 12 of the upper volute 1, and more condensed water is easily generated near the air outlet 12 of the upper volute 1, so that the condensed water generated at the top of the upper duct assembly 100 can be better and effectively collected, and the condensed water near the air outlet 12 of the upper volute 1 is reduced from flowing back into the upper volute 1.

Alternatively, referring to fig. 1 and 2, the upper drain pan 500 and the air outlet 12 of the upper scroll 1 are arranged in the left-right direction. Therefore, the structure arrangement is compact and reasonable.

According to some embodiments of the present invention, referring to fig. 1 and 2, the upper water pan 500 is detachably connected to the upper spiral case 1, for example, the upper water pan 500 may be connected to the upper spiral case 1 by a snap and a screw. Therefore, the upper water pan 500 can be conveniently detached from the upper volute 1, and the operations of cleaning, maintenance, dismounting and the like of the upper water pan 500 are facilitated.

According to some embodiments of the present invention, referring to fig. 1-3 and 6-7, the bottom of the upper water receiving tray 500 is formed with a water collecting tank 5 communicated with the upper water receiving tray 500, a first drain hole 521 is formed on the bottom wall of the water collecting tank 5, and the first drain hole 521 is adapted to drain water to the middle water receiving tray 600. From this, through setting up water catch bowl 5 in the bottom of last water collector 500, can concentrate the comdenstion water that last water collector 500 received downwards to the water catch bowl 5 in, the comdenstion water in the water catch bowl 5 can be arranged to middle water collector 600 through the first wash port 521 of its bottom, for example can be with draining on the lateral wall of last spiral case 1 through first wash port 521, the comdenstion water flows into in middle water collector 600 along the lateral wall of last spiral case 1 downwards, can conveniently concentrate the comdenstion water that last water collector 500 collected and conveniently, arrange in middle water collector 600 fast from this.

Alternatively, with reference to fig. 3, the walls of the water collection sump 5 comprise: a drain wall 52 and a guide wall 51. The drain wall 52 is the lowest portion of the wall of the sump 5, and the first drain hole 521 is formed on the drain wall 52. The guide wall 51 is connected to the drain wall 52, and the guide wall 51 extends obliquely in a direction from the top to the bottom toward a direction adjacent to the drain wall 52. Therefore, in the process that the condensed water in the upper water pan 500 flows into the water collecting tank 5, the condensed water can quickly flow to the position of the first drainage hole 521 of the water collecting tank 5 through the guiding effect of the guide wall 51, and the condensed water generated in the upper water pan 500 can be conveniently and quickly drained through the first drainage hole 521.

Optionally, referring to fig. 3, a water guiding rib plate 14 is disposed on an outer side wall of the upper volute 1, the water guiding rib plate 14 is located below the first drain hole 521 to receive water drained from the first drain hole 521, the outer side wall of the upper volute 1 includes a guiding side wall 13, the guiding side wall 13 extends towards a direction away from a center of the upper volute 1 in a direction from top to bottom, and the water guiding rib plate 14 extends towards a downward inclination to guide water onto the guiding side wall 13 in a direction from the first drain hole 521 to the guiding side wall 13. From this, through setting up water conservancy diversion gusset and water conservancy diversion gusset slope setting in the below of first drainage hole 521, the comdenstion water of following first drainage hole 521 exhaust can be arranged to water conservancy diversion gusset 14 on, through the guide effect of water conservancy diversion gusset 14, the comdenstion water that flows to water conservancy diversion gusset 14 flows towards the direction lateral wall 13 of last spiral case 1 under the effect of self gravity, on the direction lateral wall 13 of supreme spiral case 1 side by side, through the guide effect of direction lateral wall 13, can make the comdenstion water flow downwards to in the middle water collector 600. In short, the water discharged from the first water discharge hole 521 can be conveniently guided to the outer side wall of the upper volute 1 by the water guide rib plate 14, and the condensed water can be stably guided into the intermediate water pan 600 by the guide side wall 13 of the upper volute 1.

Further, referring to fig. 3, the water guiding rib plates 15 are arranged on the circumferential edges of the water guiding rib plates 14, the water guiding rib plates 15 extend along the circumferential direction of the water guiding rib plates 14, water guiding openings 151 are defined at two opposite ends of the water guiding rib plates 15 in the circumferential direction, and water on the water guiding rib plates 14 is suitable to be discharged to the guiding side walls 13 through the water guiding openings 151. Therefore, the water blocking rib plates 15 are arranged on the peripheries of the water blocking rib plates 14, the condensed water falling into the water blocking rib plates 14 can be prevented from overflowing from the peripheries of the water blocking rib plates 14, the condensed water falling into the water blocking rib plates 14 can flow to the guide side wall 13 of the upper volute 1 through the water guide openings 151, the condensed water falling into the water blocking rib plates 14 can flow onto the outer side wall of the upper volute 1 in a centralized mode, the drainage efficiency is improved, and the condensed water is reduced from spilling onto other components.

Alternatively, referring to fig. 1 and 2, the air outlet 12 of the upper scroll casing 1 faces upward, the upper water pan 500 is located at the front side of the upper duct heat exchanger 2 and adjacent to the air outlet 12 of the upper scroll casing 1, and the water collection tank 5 is located at one end of the upper water pan 500 far from the air outlet 12 of the upper scroll casing 1. Therefore, by locating the upper water tray 500 at the front side of the upper duct heat exchanger 2, the upper water tray 500 can effectively collect the condensed water at the top of the upper scroll 1. In addition, the upper water pan 500 is adjacent to the air outlet 12 of the upper volute 1, and more condensed water is easily generated near the air outlet 12 of the upper volute 1, so that the condensed water generated at the top of the upper duct assembly 100 can be better and effectively collected, and the condensed water near the air outlet 12 of the upper volute 1 is reduced from flowing back into the upper volute 1. Meanwhile, the water collecting tank 5 is located at one end of the upper water receiving tray 500, which is far away from the air outlet 12 of the upper volute 1, so that the condensed water collected by the upper water receiving tray 500 flows towards the direction far away from the air outlet 12, and the condensed water near the air outlet 12 of the upper volute 1 is further reduced from flowing back into the upper volute 1.

According to some embodiments of the present invention, referring to fig. 1, 2 and 4, a first mounting portion 11 for mounting an upper duct motor is formed on an outer side wall of the upper scroll casing 1, and the first mounting portion 11 may be a groove formed on an outer side wall of the upper scroll casing 1. The upper air duct motor is connected with the upper air duct wind wheel, a first waterproof structure is arranged on the outer side wall of the upper volute 1, the first waterproof structure is adjacent to the first installation part 11, and the first waterproof structure is used for guiding water to the middle water receiving tray 600. From this, set up first waterproof construction through the part that sets up on the lateral wall of last spiral case 1 and neighbouring last wind channel motor mounted position, first waterproof construction can be with in the comdenstion water drainage to middle water collector 600 on the lateral wall that sets up first installation department 11 of last spiral case 1, can reduce or avoid the comdenstion water on the lateral wall of last spiral case 1 to flow into first installation department 11 in and influence the reliability of last wind channel motor.

Wherein, referring to fig. 4, the first waterproof structure includes: a first water guiding rib 16 and two first longitudinal water blocking ribs 17. The first water guide rib 16 is located right above the first mounting portion 11, and the first water guide rib 16 extends obliquely downward in a direction from the middle of the first water guide rib 16 to both ends of the first water guide rib 16. The two first longitudinal water retaining ribs 17 are located on two opposite sides of the first water guiding rib 16, each first longitudinal water retaining rib 17 extends in the up-down direction, and the upper ends of the two first longitudinal water retaining ribs 17 are connected with two ends of the first water guiding rib 16 respectively. Therefore, when condensate water is generated on the outer side wall of the upper volute 1 with the first mounting portion 11, the condensate water can flow to the two first longitudinal water retaining ribs 17 through the guiding function of the first water guiding rib 16, and the condensate water can flow downwards into the middle water receiving tray 600 along the two first longitudinal water retaining ribs 17 through the guiding function of the two first longitudinal water retaining ribs 17. By arranging the first waterproof structure to include the first water guide rib 16 and the two first longitudinal water blocking ribs 17, it is possible to block the condensed water from entering the first mounting portion 11 and to quickly guide the condensed water to the middle water pan 600.

Optionally, referring to fig. 4, the first water guiding rib 16 includes two first sub water guiding ribs 161 connected along an extending direction of the first water guiding rib 16, the two first sub water guiding ribs 161 both extend along a straight line, and each first sub water guiding rib 161 extends obliquely downward in a direction from a connection of the two first sub water guiding ribs 161 to a connection of the first sub water guiding rib 161 and the first longitudinal water blocking rib 17. From this, through setting first water guide rib 16 to including the first sub water guide rib 161 of two slope extensions, can make the comdenstion water lead to corresponding first vertical manger plate rib 17 fast through every first sub water guide rib 161 to make first water guide rib 16 simple structure, make things convenient for machine-shaping.

Alternatively, referring to fig. 4, the lower end of the first longitudinal water-blocking rib 17 extends to the bottom of the upper scroll casing 1. Therefore, the condensed water can flow downwards along the first longitudinal water retaining rib 17 to the bottom of the upper volute 1 and finally fall into the middle water receiving tray 600, so that the drainage effect of the first longitudinal water retaining rib 17 can be enhanced.

According to some embodiments of the present invention, referring to fig. 8, the portion of the bottom wall of the intermediate water pan 600 opposite to the lower duct heat exchanger 4 is recessed downward to form a water collecting area 6, and the water collecting area 6 is formed with a second water drainage hole 61. Therefore, the concave water collecting area 6 is formed in the middle water collecting tray 600, condensed water collected in the middle water collecting tray 600 can be concentrated in the water collecting area 6 and is discharged onto the lower air duct heat exchanger 4 through the second water discharging hole 61 of the water collecting area 6, the condensed water flows along the lower air duct heat exchanger 4 and finally flows into the chassis 700, and therefore water in the middle water collecting tray 600 can be concentrated and quickly and downwards flows into the chassis 700.

Optionally, referring to fig. 8, a first drain pipe 63 may be further disposed on a side wall of the intermediate water receiving tray 600, and the first drain pipe 63 is communicated with the intermediate water receiving tray 600, for example, when the mobile air conditioner is refrigerating, if the condensed water accumulated in the intermediate water receiving tray 600 cannot be quickly and timely drained downwards through the first drain hole 521 of the water collecting area 6, the condensed water may be drained through the first drain pipe 63.

Alternatively, referring to fig. 8 and 9, the second drainage hole 61 is provided at intervals, the water collection area 6 is formed with a first overflow hole 62, the cross-sectional area of the first overflow hole 62 is larger than that of the second drainage hole 61, the upper edge of the second drainage hole 61 is formed with a first baffle portion 611 extending upward, the first baffle portion 611 extends along the circumferential direction of the second drainage hole 61 and is annular, the upper edge of the first overflow hole 62 is formed with a second baffle portion 621 extending upward, the second baffle portion 621 extends along the circumferential direction of the first overflow hole 62 and is annular, and the height of the second baffle portion 621 is larger than that of the first baffle portion 611. Thus, by providing the first surrounding portion 611 at the upper edge of the second drain hole 61, the condensed water accumulated in the water collection space 6 can be uniformly drained downward through the plurality of second drain holes 61 after reaching a certain height. Moreover, the first overflow hole 62 with a large cross-sectional area is arranged, and the second surrounding blocking part 621 with a high height is arranged on the upper periphery of the first overflow hole 62, so that when the water amount in the water collecting area 6 is large, the water can be simultaneously discharged downwards onto the lower air duct heat exchanger 4 through the first overflow hole 62, the discharge efficiency of the condensed water in the middle water receiving tray 600 is improved, and the uniform and stable discharge is ensured.

Alternatively, the lower periphery of the second water drain hole 61 is formed with a third baffle extending downward, the third baffle extending in the circumferential direction of the second water drain hole 61 and having a ring shape. Therefore, the third surrounding baffle part is arranged on the lower periphery of the second drain hole 61, and in the process that the condensed water in the water collection area 6 is drained to the lower air duct heat exchanger 4 through the second drain hole 61, the third surrounding baffle part can play a role in guiding, the condensed water can be better guided to the lower air duct heat exchanger 4, and the water can be prevented from spreading along the bottom surface of the middle water receiving tray 600.

According to some embodiments of the present invention, referring to fig. 1, 2 and 4, a second mounting portion 31 for mounting a lower duct motor is formed on an outer side wall of the lower scroll casing 3, and the second mounting portion 31 may be a groove formed on an outer side wall of the lower scroll casing 3. The lower wind channel motor is connected with the lower wind channel wind wheel, a second waterproof structure is arranged on the outer side wall of the lower volute 3, the second waterproof structure is adjacent to the second installation portion 31, and the second waterproof structure is used for guiding water to the chassis 700. Therefore, the second waterproof structure is arranged on the outer side wall of the lower volute 3 and the part close to the installation position of the lower air duct motor, the second waterproof structure can drain the condensed water on the outer side wall of the lower volute 3, which is provided with the second installation part 31, into the chassis 700, and the influence on the reliability of the lower air duct motor caused by the condensed water on the outer side wall of the lower volute 3 flowing into the second installation part 31 can be reduced or avoided.

It should be noted that the condensed water on the outer sidewall of the lower volute 3 may be condensed water directly generated on the outer sidewall of the lower volute 3 when the mobile air conditioner is heating; the condensed water on the outer side wall of the lower volute 3 may also be the condensed water generated by the upper duct assembly 100 and sprinkled onto the outer side wall of the lower volute 3 due to the shaking of the whole machine and other reasons when the mobile air conditioner is used for refrigeration.

Wherein, referring to fig. 5, the second waterproof structure includes: a second water guiding rib 32 and two second longitudinal water blocking ribs 33. The second water guide rib 32 is located right above the second mounting portion 31, and the second water guide rib 32 extends obliquely downward in a direction from the middle of the second water guide rib 32 to both ends of the second water guide rib 32. The two second longitudinal water blocking ribs 33 are located on two opposite sides of the second water guiding rib 32, each second longitudinal water blocking rib 33 extends in the up-down direction, and the upper ends of the two second longitudinal water blocking ribs 33 are connected with two ends of the second water guiding rib 32 respectively. Therefore, when there is condensed water on the outer sidewall of the lower scroll casing 3 having the second mounting portion 31, the condensed water may flow toward the two second longitudinal water-retaining ribs 33 by the guiding function of the second water-guiding rib 32, and the condensed water may flow downward into the base plate 700 along the two second longitudinal water-retaining ribs 33 by the guiding function of the two second longitudinal water-retaining ribs 33. By providing the second waterproof structure to include the above-described second water guide rib 32 and the two second longitudinal water-retaining ribs 33, it is possible to both block the entry of the condensed water into the second mounting portion 31 and also to quickly guide the condensed water into the chassis 700.

Optionally, referring to fig. 5, the second water guiding rib 32 includes two second sub water guiding ribs 321 connected along an extending direction of the second water guiding rib 32, the two second sub water guiding ribs 321 both extend along a straight line, and each second sub water guiding rib 321 extends obliquely downward in a direction from a connection of the two second sub water guiding ribs 321 to a connection of the second sub water guiding rib 321 and the second longitudinal water blocking rib 33. From this, through setting the second water guide rib 32 to including the sub water guide rib 321 of two slope extensions, can make the comdenstion water lead to corresponding second vertical manger plate muscle 33 fast through every sub water guide rib 321 of second to make second water guide rib 32 simple structure, make things convenient for machine-shaping.

Alternatively, referring to FIG. 5, the lower end of the second longitudinal water bar 33 extends to the bottom of the volute. Therefore, the condensed water can flow downwards along the second longitudinal water-retaining rib 33 to the bottom of the lower volute 3 and finally fall into the chassis 700, so that the drainage effect of the second longitudinal water-retaining rib 33 can be enhanced.

According to some embodiments of the present invention, referring to fig. 10 and 11 and combining fig. 1, the chassis 700 has the compressor area 7 arranged in proper order along the left-right direction, the water receiving area 9 and the lower volute area 8, the compressor 800 of the mobile air conditioner locates the compressor area 7, the lower volute 3 locates the lower volute area 8, the water receiving area 9 is formed with the water receiving tank 91 extending along the front-back direction, the bottom of the lower air duct heat exchanger 4 is located in the water receiving tank 91, the condensed water on the lower air duct heat exchanger 4 (the condensed water on the lower air duct heat exchanger 4 may be the condensed water produced by the lower air duct heat exchanger 4 itself, the condensed water on the lower air duct heat exchanger 4 may also be the condensed water discharged downwards from the intermediate water tray 600) may flow downwards into the water receiving tank 91.

A third drainage hole communicated with the water receiving tank 91 is formed in the side wall of the water receiving region 9, the third drainage hole is located on one side of the water receiving tank 91 in the length direction, and the height of the bottom wall of the water receiving tank 91 is gradually reduced in the length direction (front-back direction in fig. 10 and 11) of the water receiving tank 91 and in the direction adjacent to the third drainage hole. Therefore, the water in the water receiving tank 91 flows along the length direction of the water receiving tank 91 and flows towards the direction adjacent to the third drainage hole, which is beneficial to quickly draining the water in the water receiving tank 91. Alternatively, a second drain pipe 97 may be provided at the third drain hole, and water may be drained through the second drain pipe 97.

Alternatively, referring to fig. 10 and 11, the water receiving area 9 is formed with a water drainage groove 92, the water drainage groove 92 is located on one side of the water receiving groove 91 in the length direction and is adjacent to a third water drainage hole, the water drainage groove 92 and the water receiving groove 91 are separated by a partition plate 93, the third water drainage hole is communicated with the water drainage groove 92, a water through hole 931 communicating the water receiving groove 91 and the water drainage groove 92 is formed on the partition plate 93, a water guide groove 911 extending in the front-back direction is formed on the bottom wall of the water receiving groove 91, and the water guide groove 911 extends to the water through hole 931. Therefore, through the arranged drainage channel 92 and the water guide groove 911, water in the water receiving tank 91 can be quickly drained into the drainage channel 92 through the water guide groove 911 and the water through hole 931, and the water in the drainage channel 92 is drained through the third drainage hole.

Further, referring to fig. 10, a water fetching groove 912 is formed on the bottom wall of the water receiving groove 91, a water fetching wheel is arranged in the water fetching groove 912 to fetch water onto the lower duct heat exchanger 4, the water fetching groove 912 is adjacent to the water discharge groove 92, and the water guide groove 911 penetrates through the water fetching groove 912. From this, through the groove 912 of fetching water that sets up and the groove 912 of fetching water is close to the discharge tank 92, can make the water in the water receiving tank 91 flow into more in the groove 912 of fetching water, can break up the water in the groove 912 of fetching water to the wind channel heat exchanger 4 down through the wheel of fetching water, when mobile air conditioner refrigerates, can cool off the heat dissipation to wind channel heat exchanger 4 down, improves mobile air conditioner's efficiency, reduces the energy consumption.

Further, referring to fig. 10 and 11, a second overflow hole 94 is formed on a side wall of the drain groove 92, and the second overflow hole 94 is higher than the third drain hole, so that the water in the drain groove 92 is preferentially drained through the third drain hole, and when the water level in the drain groove 92 is high, the water can be drained through the second overflow hole 94. Be formed with on the chassis 700 and be used for holding the motor groove 95 of fetching water the motor, be formed with on the lateral wall of water receiving tank 91 with the motor shaft complex cooperation groove 96 of fetching water the motor, the motor shaft links with the wheel of fetching water the motor drive fetching water wheel and rotates in order to break up the water in the groove 912 of fetching water to down on wind channel heat exchanger 4, the diapire low order of cooperation groove 96 is higher than the diapire low order of second spillway hole 94. Therefore, when the water level in the water receiving tank 91 is high, the water can be prevented from being discharged in time through the second overflow hole 94, and the water in the water receiving tank 91 is prevented from overflowing the matching groove 96 to enter the water pumping motor groove 95.

Optionally, referring to fig. 10, a support rib 913 for supporting the lower duct heat exchanger 4 is disposed in the water receiving tank 91, and an upper end surface of the support rib 913 is lower than an upper end surface of a side wall of the water receiving tank 91. From this, through set up the brace 913 that is used for supporting down wind channel heat exchanger 4 in water receiving tank 91, be favorable to separating the bottom of wind channel heat exchanger 4 down with the water in the water receiving tank 91, reduce wind resistance of wind channel heat exchanger 4 down, improve wind channel heat exchanger 4 heat exchange efficiency down. Moreover, the upper end surface of the supporting rib 913 is lower than the upper end surface of the side wall of the water receiving tank 91, so that the condensed water on the lower air duct heat exchanger 4 can be ensured to fall into the water receiving tank 91.

Further, referring to fig. 10 and 11, at least one support rib 913 is the long support rib 914 that extends along the fore-and-aft direction, and the both ends on the length direction of long support rib 914 link to each other with two lateral walls on the length direction of water receiving tank 91 respectively, and long support rib 914 is spaced apart with the lateral wall on the width direction of water receiving tank 91, is formed with on the long support rib 914 and communicates breach 9141, and the portion that is located the both sides on the long support rib 914 thickness direction of intercommunication breach 9141 intercommunication water receiving tank 91. From this, through setting up at least one brace rod 91 into foretell long brace rod 914, can improve the support dynamics of brace rod 913 to can improve water receiving tank 91's structural strength, set up intercommunication breach 9141 so that the part intercommunication that is located long brace rod 914 thickness direction both sides of water receiving tank 91 at long brace rod 914 simultaneously, can guarantee that the water in water receiving tank 91 all can flow to the third wash port discharge at last.

Optionally, a fourth drain hole is formed on at least one of the side wall of the compressor zone 7 and the side wall of the lower volute zone 8. For example, when a fourth drain hole is provided on the side wall of the compressor section 7, the condensed water in the compressor section 7 can be drained through the fourth drain hole; when a fourth drain hole is formed in the side wall of the lower volute region 8, the condensed water in the lower volute region 8 (for example, the condensed water on the lower volute 3 falls into the lower volute region 8) can be drained through the fourth drain hole; when the side wall of the compressor area 7 and the side wall of the lower volute area 8 are both provided with the fourth drain holes, the condensed water in the compressor area 7 can be drained through the corresponding fourth drain holes, and the condensed water in the lower volute area 8 can be drained through the corresponding fourth drain holes.

Optionally, a drainage groove is formed in at least one of the bottom wall of the compressor zone 7 and the bottom wall of the lower volute zone 8, and the drainage groove is used for draining water into the water receiving groove 91. For example, when the drainage groove is formed in the bottom wall of the compressor zone 7, the condensed water in the compressor zone 7 can be drained into the water receiving groove 91 through the drainage groove; when the drainage groove is formed in the bottom wall of the lower volute region 8, the condensed water in the lower volute region 8 can be drained into the water receiving groove 91 through the drainage groove; when all setting up the drainage groove on the diapire of compressor district 7 and the diapire of lower spiral case district 8, the comdenstion water in the compressor district 7 can be through corresponding drainage groove drainage to water receiving tank 91 in, the comdenstion water in the lower spiral case district 8 can be through corresponding drainage groove drainage to water receiving tank 91 in.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (25)

1. A mobile air conditioner, comprising:

a chassis;

the lower air duct assembly is arranged on the chassis and comprises a lower air duct heat exchanger, a lower volute and a lower air duct wind wheel arranged in the lower volute, and condensed water on the lower air duct assembly is suitable for being collected in the chassis;

the upper air duct assembly is arranged above the lower air duct assembly and comprises an upper air duct heat exchanger, an upper volute and an upper air duct wind wheel arranged in the upper volute;

the middle water pan is arranged between the upper air duct assembly and the lower air duct assembly, is used for receiving condensed water on the upper air duct assembly, and is suitable for discharging water to the lower air duct heat exchanger;

the upper water receiving tray is arranged at the top of the upper air duct assembly and used for collecting condensed water at the top of the upper air duct assembly, and the upper water receiving tray is suitable for discharging water to the middle water receiving tray.

2. The mobile air conditioner of claim 1, wherein the outlet of the upper volute is upwardly directed, and the upper drip tray is positioned on a front side of the upper duct heat exchanger adjacent to the outlet of the upper volute.

3. The mobile air conditioner of claim 2, wherein the upper drain pan and the outlet of the upper scroll case are arranged in a left-right direction.

4. The mobile air conditioner of claim 1, wherein the upper drip pan is detachably connected to the upper scroll.

5. The mobile air conditioner of claim 1, wherein a water collection tank communicating with the upper water receiving tray is formed at a bottom of the upper water receiving tray, and a first drain hole adapted to discharge water to the intermediate water receiving tray is formed on a bottom wall of the water collection tank.

6. The mobile air conditioner of claim 5, wherein the wall of the sump comprises:

a drain wall which is the lowest part of the wall of the water collection tank, the first drain hole being formed on the drain wall;

the guide wall is connected with the drainage wall, and extends towards the direction adjacent to the drainage wall in an inclined manner in the direction from top to bottom.

7. The mobile air conditioner according to claim 5, wherein a water guiding rib is provided on an outer side wall of the upper scroll casing, the water guiding rib is located below the first drain hole to receive water drained from the first drain hole, the outer side wall of the upper scroll casing includes a guiding side wall, the guiding side wall extends in a direction away from a center of the upper scroll casing in a top-down direction, and the water guiding rib extends in a downward inclined direction to guide water onto the guiding side wall in a direction from the first drain hole to the guiding side wall.

8. The mobile air conditioner according to claim 7, wherein a water guide rib plate is arranged on the periphery of the water guide rib plate, the water guide rib plate extends along the circumferential direction of the water guide rib plate, water guide openings are defined at two opposite ends of the water guide rib plate in the circumferential direction, and water on the water guide rib plate is suitable for being discharged to the guide side wall through the water guide openings.

9. The mobile air conditioner of claim 5, wherein the outlet of the upper volute is upwardly directed, the upper drip tray is positioned at a front side of the upper duct heat exchanger and adjacent to the outlet of the upper volute, and the catch basin is positioned at an end of the upper drip tray remote from the outlet of the upper volute.

10. The mobile air conditioner according to claim 1, wherein a first mounting portion for mounting an upper duct motor is formed on an outer side wall of the upper volute, the upper duct motor is connected with the upper duct wind wheel, a first waterproof structure is provided on an outer side wall of the upper volute, the first waterproof structure is adjacent to the first mounting portion, the first waterproof structure is used for guiding water to the intermediate water pan, and the first waterproof structure includes:

the first water guide rib is positioned right above the first mounting part, and extends downwards in an inclined manner in the direction from the middle of the first water guide rib to the two ends of the first water guide rib;

the water guide device comprises two first longitudinal water retaining ribs, wherein the two first longitudinal water retaining ribs are positioned on two opposite sides of the first water guide rib, each first longitudinal water retaining rib extends along the up-down direction, and the upper ends of the two first longitudinal water retaining ribs are connected with two ends of the first water guide rib respectively.

11. The mobile air conditioner of claim 10, wherein the first water guide rib comprises two first sub water guide ribs connected along an extending direction of the first water guide rib, each of the two first sub water guide ribs extends along a straight line, and each of the first sub water guide ribs extends obliquely downward in a direction from a connection of the two first sub water guide ribs to a connection of the first sub water guide rib and the first longitudinal water blocking rib.

12. The mobile air conditioner of claim 10, wherein a lower end of the first longitudinal water blocking rib extends to a bottom of the upper scroll.

13. The mobile air conditioner of claim 1, wherein a portion of the bottom wall of the intermediate water collector opposite to the lower duct heat exchanger is recessed downward to form a water collecting area, and the water collecting area is formed with a second water discharge hole.

14. The mobile air conditioner as claimed in claim 13, wherein the second drainage hole is formed at intervals, the water collecting region is formed with a first overflow hole having a cross-sectional area larger than that of the second drainage hole, a first baffle portion extending upward is formed at an upper edge of the second drainage hole, the first baffle portion extends in a circumferential direction of the second drainage hole and is formed in an annular shape, a second baffle portion extending upward is formed at an upper edge of the first overflow hole, the second baffle portion extends in a circumferential direction of the first overflow hole and is formed in an annular shape, and a height of the second baffle portion is larger than that of the first baffle portion.

15. The mobile air conditioner as claimed in claim 13, wherein a third dam extending downward is formed at a lower peripheral edge of the second drain hole, the third dam extending along a peripheral direction of the second drain hole and having a ring shape.

16. The mobile air conditioner according to claim 1, wherein a second mounting portion for mounting a lower duct motor is formed on an outer side wall of the lower scroll casing, the lower duct motor is connected to the lower duct wind wheel, a second waterproof structure is provided on an outer side wall of the lower scroll casing, the second waterproof structure is adjacent to the second mounting portion, the second waterproof structure is used for guiding water to the base plate, and the second waterproof structure includes:

the second water guide rib is positioned right above the second mounting part, and extends obliquely downwards in the direction from the middle of the second water guide rib to the two ends of the second water guide rib;

the two second longitudinal water retaining ribs are positioned on two opposite sides of the second water guiding rib, each second longitudinal water retaining rib extends along the up-down direction, and the upper ends of the two second longitudinal water retaining ribs are connected with two ends of the second water guiding rib respectively.

17. The mobile air conditioner of claim 16, wherein the second water guide rib comprises two second sub water guide ribs connected along an extending direction of the second water guide rib, each of the two second sub water guide ribs extends along a straight line, and each of the second sub water guide ribs extends obliquely downward in a direction from a connection of the two second sub water guide ribs to a connection of the second sub water guide rib and the second longitudinal water blocking rib.

18. The mobile air conditioner of claim 16, wherein a lower end of the second longitudinal water blocking rib extends to a bottom of the lower scroll casing.

19. The mobile air conditioner according to any one of claims 1 to 18, wherein the base plate has a compressor region, a water receiving region, and a lower volute region arranged in the left-right direction, the compressor of the mobile air conditioner is disposed in the compressor region, the lower volute is disposed in the lower volute region, the water receiving region is formed with a water receiving tank extending in the front-rear direction, the bottom of the lower duct heat exchanger is located in the water receiving tank, a third drain hole communicated with the water receiving tank is formed in a side wall of the water receiving region, the third drain hole is located on one side of the water receiving tank in the length direction, and the bottom wall of the water receiving tank is gradually lowered in the length direction of the water receiving tank and in the direction adjacent to the third drain hole.

20. The mobile air conditioner as claimed in claim 19, wherein the water receiving portion is formed with a water discharge groove located at one side of the water receiving groove in a length direction thereof and adjacent to the third water discharge hole, the water discharge groove and the water receiving groove are separated by a partition plate, the third water discharge hole is communicated with the water discharge groove, a water passage hole communicating the water receiving groove and the water discharge groove is formed in the partition plate, a water guide groove extending in a front-rear direction is formed in a bottom wall of the water receiving groove, and the water guide groove extends to the water passage hole.

21. The mobile air conditioner of claim 20, wherein a catch basin is formed on a bottom wall of the catch basin, a catch wheel is provided in the catch basin to catch water onto the lower duct heat exchanger, the catch basin is adjacent to the drain basin, and the water guide groove passes through the catch basin.

22. The mobile air conditioner as claimed in claim 21, wherein a second overflow hole is formed on a sidewall of the drain tank, the second overflow hole is higher than the third drain hole, a pumping motor tank for receiving a pumping motor is formed on the base pan, a mating tank for mating with a motor shaft of the pumping motor is formed on a sidewall of the receiving tank, the motor shaft is connected to the pumping wheel, and a lowest bottom wall of the mating tank is higher than a lowest bottom wall of the second overflow hole.

23. The mobile air conditioner according to claim 19, wherein a support rib for supporting the lower duct heat exchanger is provided in the water receiving tank, and an upper end surface of the support rib is lower than an upper end surface of a side wall of the water receiving tank.

24. The mobile air conditioner of claim 23, wherein at least one of the support ribs is a long support rib extending in a front-rear direction, both ends of the long support rib in a length direction are respectively connected to two side walls of the water receiving tank in the length direction, the long support rib is spaced apart from the side walls of the water receiving tank in a width direction, and a communication gap is formed in the long support rib and communicates with portions of the water receiving tank on both sides of the long support rib in a thickness direction.

25. The mobile air conditioner of claim 19, wherein at least one of the side wall of the compressor region and the side wall of the lower volute region is formed with a fourth drain hole; or at least one of the bottom wall of the compressor area and the bottom wall of the lower volute area is provided with a drainage groove, and the drainage groove is used for draining water into the water receiving groove.

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