Mobile air conditioner

Abstract

The utility model relates to air conditioning technical field, concretely provides a mobile air conditioner, aims at solving the problem of dripping noise. For this purpose, the mobile air conditioner of the utility model includes: the shell is formed with cavity, the outdoor air duct subassembly divides the cavity into indoor chamber and outdoor chamber, including upper air duct board, lower air duct board and volute, the upper air duct board installs indoor heat exchanger and is equipped with water receiving space, and the upper air duct board is equipped with the water receiving space's drain groove, the water collecting box is equipped with lower air duct board and includes vertical water collecting side wall, the top of first drain pipe is communicated with drain groove, and the bottom of first drain pipe extends to water collecting box, has the first flat plate side wall of parallel close water collecting side wall, the top of second drain pipe is communicated with water receiving space, and the bottom of second drain pipe extends to water collecting box, has the second flat plate side wall of parallel close water collecting side wall and abuts, the application makes the most of condensate water flow to water collecting side wall along first flat plate side wall and second flat plate side wall, and flows down along water collecting side wall to reduce noise.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically providing a portable air conditioner. Background Technology

[0002] Currently, both wall-mounted and floor-standing air conditioners require fixed installation in a limited location and cannot be moved. Therefore, portable air conditioners have emerged. A portable air conditioner mainly consists of a casing, an indoor airflow assembly, and an outdoor airflow assembly. Both the indoor and outdoor airflow assemblies are housed within the casing. The casing has indoor air inlets and outlets corresponding to the indoor airflow assembly, and similarly, outdoor air inlets and outlets corresponding to the outdoor airflow assembly. Due to their small size, portable air conditioners can be moved to different locations or rooms to regulate the air temperature in those locations or rooms.

[0003] In portable air conditioners of this technology, the evaporator is located on the top and the condenser on the bottom. To improve heat exchange efficiency, the condensate produced by the evaporator is collected in a drip tray, and a drain hole corresponding to the condenser is provided on the drip tray to cool the condenser. Because the condensate can splash and pose a safety hazard as it drips, a water collection box is installed above the condenser. However, the dripping of condensate into the collection box produces a dripping sound, increasing the noise level of the portable air conditioner during operation and affecting the user experience. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problem, namely, to solve the noise problem caused by dripping water when the portable air conditioner is running.

[0005] This utility model provides a portable air conditioner, comprising: a shell with an internal cavity; an outdoor air duct assembly separating the cavity into an indoor cavity and an outdoor cavity distributed vertically, the outdoor air duct assembly including an upper air duct plate, a lower air duct plate, and a volute, the upper air duct plate being fitted with an indoor heat exchanger and having a water collection space, a portion of the upper air duct plate being recessed downwards to form a drainage groove in the water collection space, the drainage groove having a detachable external drainage component; a water collection box, formed on the lower air duct plate corresponding to the drainage groove and located outside the volute, the water collection box including a vertically extending water collection sidewall; a first drain pipe, the top end of which connects to the drainage groove, and the bottom end extending downwards into the water collection box, the first drain pipe having a first flat sidewall parallel to and close to the water collection sidewall; and a second drain pipe, the top end of which connects to the water collection space, and the bottom end extending downwards into the water collection box, the second drain pipe having a second flat sidewall parallel to and close to the water collection sidewall.

[0006] With the above technical solution, the condensate in the water receiving space and / or drainage trough can be guided to the water collection box through the first and second drain pipes. By having a first flat sidewall parallel and close to the water collection sidewall of the first drain pipe, and a second flat sidewall parallel and close to the water collection sidewall of the second drain pipe, most of the condensate flowing into the first and second drain pipes can flow along the first and second flat sidewalls to the water collection sidewall and then flow downwards along it. This significantly reduces dripping noise, lowers the noise level of the portable air conditioner, and improves user comfort and experience.

[0007] In an optional embodiment of the above-mentioned portable air conditioner, the inner wall surface of the first flat plate sidewall is provided with guide ribs extending from top to bottom.

[0008] By incorporating guide ribs extending from top to bottom, the flow path of condensate can be defined, improving its downward fluidity. Furthermore, the guide ribs increase the bending, torsional, and compressive strength of the first plate sidewall, enhancing structural strength.

[0009] In an optional embodiment of the above-mentioned portable air conditioner, the guide rib includes a first section and a second section distributed vertically. The first section of the guide rib is arranged vertically, and the second section of the guide rib is arranged inclined from top to bottom toward the side wall of the first flat plate.

[0010] By setting the second section to be inclined downwards towards the side wall of the first plate, the inertia and tendency of the condensate flowing to the second section towards the side wall of the first plate can be utilized, so that most of the condensate in the first drain pipe can flow downwards along the side wall of the first plate, thereby reducing noise.

[0011] In an optional embodiment of the above-described portable air conditioner, the first drain pipe further has a first arc-shaped sidewall connected to the sidewall of the first flat plate; the bottom end of the first arc-shaped sidewall is higher than the bottom end of the sidewall of the first flat plate.

[0012] By setting the bottom of the first arc-shaped sidewall higher than the bottom of the first flat sidewall, the condensate flowing from the first drain pipe can be better guided to flow downward along the first flat sidewall, thereby reducing dripping noise.

[0013] In an optional embodiment of the above-described portable air conditioner, the top end of the second segment of the guide rib is higher than the bottom end of the first arc-shaped sidewall.

[0014] By setting the top of the second section of the guide rib higher than the bottom of the first arc-shaped sidewall, the condensate can be guided to the first flat sidewall before flowing out of the space defined by the first arc-shaped sidewall, thereby improving the fluidity and flow rate to the first flat sidewall.

[0015] In an optional embodiment of the above-mentioned portable air conditioner, the first arc-shaped sidewall extends vertically, or the first arc-shaped sidewall extends obliquely from top to bottom toward the first flat sidewall.

[0016] By setting the first arc-shaped sidewall to extend vertically, the structural complexity can be reduced, the deposition of impurities can be avoided, and the cleanliness inside the first drain pipe can be improved, preventing bacterial growth. By setting the first arc-shaped sidewall to extend slopingly downwards towards the first flat plate sidewall, it is helpful to guide the condensate towards the first flat plate sidewall, and to make a large amount of condensate flow downwards along the first flat plate sidewall, thus reducing noise.

[0017] In an optional embodiment of the above-mentioned portable air conditioner, the drainage trough has a bottom wall and a first wall and a second wall arranged opposite to each other, wherein the first wall is connected to the external drainage component, the second wall is spaced apart from the first arc-shaped sidewall, and the first flat sidewall extends downward from the bottom wall; the first section of the guide rib is flush with the side of the first arc-shaped sidewall facing the second wall facing the first arc-shaped sidewall.

[0018] By setting the first section of the guide rib to be flush with the side of the first arc-shaped sidewall and the wall of the second groove facing the first arc-shaped sidewall, the condensate discharged from the overflow hole can flow downward along the guide rib or flow towards the sidewall of the first flat plate, thereby preventing the overflowing condensate from dripping directly into the water collection box.

[0019] In an optional embodiment of the above-described portable air conditioner, the second drain pipe further has a second arc-shaped sidewall connected to the sidewall of the second flat plate; the bottom end of the second arc-shaped sidewall is higher than the bottom end of the sidewall of the second flat plate.

[0020] By setting the bottom of the second arc-shaped sidewall higher than the bottom of the second flat sidewall, the condensate flowing from the second drain pipe can be better guided to flow downward along the second flat sidewall, thereby reducing dripping noise.

[0021] In the optional implementation of the above-mentioned portable air conditioner, the bottom end of the second arc-shaped sidewall is arranged to slope upward from the inside out.

[0022] By arranging the bottom end of the second arc-shaped sidewall at an upward and outward angle, the condensate flowing along the second arc-shaped sidewall can flow along the edge of the bottom end of the second arc-shaped sidewall towards the second flat sidewall, thereby reducing the dripping noise of the condensate.

[0023] In an optional embodiment of the above-mentioned portable air conditioner, a drain hole corresponding to the water receiving space is provided on the upper air duct plate, and the second drain pipe is connected to the drain hole and integrally formed with the upper air duct plate.

[0024] By connecting the second drain pipe to the drain hole and integrally forming it with the upper air duct plate, some of the condensate in the water receiving space can flow into the second drain pipe along the drain hole without causing condensate leakage or bacterial growth. Attached Figure Description

[0025] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0026] Figure 1 This is a structural schematic diagram of a portable air conditioner provided by this utility model;

[0027] Figure 2 This is an exploded schematic diagram of a portable air conditioner provided by this utility model;

[0028] Figure 3 This is a structural schematic diagram of an outdoor air duct component provided by this utility model;

[0029] Figure 4 This is an exploded view of an outdoor ventilation duct component provided by this utility model;

[0030] Figure 5 This is a structural schematic diagram of an upper air duct plate provided by this utility model;

[0031] Figure 6 This is a schematic diagram of another upper air duct plate provided by this utility model;

[0032] Figure 7 This is a cross-sectional schematic diagram of an upper air duct plate provided by this utility model;

[0033] Figure 8 yes Figure 7 A magnified view of a portion of the image;

[0034] Figure 9 This is a schematic diagram of the structure of a downdraft duct plate provided by this utility model;

[0035] Figure 10 This is a cross-sectional schematic diagram of a downdraft duct plate provided by this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Outer shell; 101. Inner cavity; 102. Outer cavity;

[0038] 200. Outdoor air duct assembly; 210. Upper air duct plate; 2101. Water collection space; 211. Drainage channel; 2111. Bottom channel wall; 2112. First channel wall; 2113. Second channel wall; 2114. Overflow hole; 212. Drainage connector; 213. Drainage hole; 220. Lower air duct plate; 221. Water distribution hole; 230. Volute;

[0039] 300. Water collection box; 310. Water collection sidewall;

[0040] 410. First drain pipe; 413. First flat sidewall; 414. Guide rib; 4141. First section; 4142. Second section; 415. First arc-shaped sidewall;

[0041] 420. Second drain pipe; 423. Second flat sidewall; 424. Second arc-shaped sidewall;

[0042] 510. Indoor heat exchanger; 520. Outdoor heat exchanger. Detailed Implementation

[0043] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. In the following description, for ease of explanation, numerous details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other instances, well-known structures and apparatuses may be simplified for the sake of simplicity.

[0044] It should be noted that in the description of this application, the terms "center," "upper," "lower," "vertical," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] This utility model provides a portable air conditioner, combined with Figures 1 to 10 As shown, it includes a housing 100, an outdoor air duct assembly 200, a water collection box 300, a first drain pipe 410, and a second drain pipe 420.

[0047] The interior of the outer casing 100 forms a cavity. The outdoor air duct assembly 200 is disposed in the cavity and divides the cavity into an indoor cavity 101 and an outdoor cavity 102 distributed vertically. The outdoor air duct assembly 200 includes an upper air duct plate 210, a lower air duct plate 220 and a volute 230. The upper air duct plate 210 is equipped with an indoor heat exchanger 510 and has a water receiving space 2101. A portion of the upper air duct plate 210 is recessed downward to form a drainage groove 211 of the water receiving space 2101. The drainage groove 211 has a detachable external drainage component.

[0048] The water collection box 300 is formed on the downwind duct plate 220 and located outside the volute 230, corresponding to the drainage groove 211. The water collection box 300 includes a water collection sidewall 310 extending vertically.

[0049] The top end of the first drain pipe 410 is connected to the drain trough 211, and the bottom end of the first drain pipe 410 extends downward into the water collection box 300. The first drain pipe 410 has a first flat plate sidewall 413 that is parallel to and close to the water collection sidewall 310.

[0050] The top end of the second drain pipe 420 is connected to the water receiving space 2101, and the bottom end of the second drain pipe 420 extends downward into the water collection box 300. The second drain pipe 420 has a second flat sidewall 423 that is parallel to and close to the water collection sidewall 310.

[0051] Optionally, the outer casing 100 has an internal cavity, within which an outdoor air duct assembly 200 is disposed, dividing the cavity into an upper and lower distributed indoor cavity 101 and an outdoor cavity 102. Specifically, the outdoor air duct assembly 200 includes an upper air duct plate 210 and a lower air duct plate 220 arranged opposite to each other, and a volute 230 disposed between the upper air duct plate 210 and the lower air duct plate 220. The upper air duct plate 210, the lower air duct plate 220, and the volute 230 together enclose a fan installation space. The outdoor air duct assembly 200 is connected to the outdoor cavity 102, and an outdoor fan is disposed within the fan installation space. The upper air duct plate 210 faces the indoor cavity 101. Further, an indoor heat exchanger 510 is disposed in the indoor cavity 101, and an outdoor heat exchanger 520 is disposed in the outdoor cavity 102.

[0052] Optionally, the volute 230 and the downdraft duct 220 are integrally formed.

[0053] Alternatively, the volute 230 and the upper air duct 210 are integrally formed.

[0054] Correspondingly, the outer casing 100 is provided with an indoor air inlet and an indoor air outlet corresponding to the inner cavity 101, and also with an outdoor air inlet and an outdoor air outlet corresponding to the outer cavity 102. An indoor fan is also provided inside the inner cavity 101. Driven by the outdoor fan, air enters the outer cavity 102 through the outdoor air inlet, exchanges heat with the outdoor heat exchanger 520, flows to the outdoor air duct assembly 200, and exits the outer casing 100 through the outdoor air outlet; simultaneously, driven by the indoor fan, indoor air enters the inner cavity 101 through the indoor air inlet, exchanges heat with the indoor heat exchanger 510, and flows to the indoor air outlet. Among them, the lower air duct plate 220 is provided with an airflow inlet connecting the outer cavity 102 and the fan installation space, and the volute 230 is provided with an airflow outlet connecting to the indoor air outlet.

[0055] In this solution, when the portable air conditioner is operating in cooling mode, the indoor heat exchanger 510 acts as the evaporator and the outdoor heat exchanger 520 acts as the condenser.

[0056] Optionally, the indoor heat exchanger 510 is installed on the upper surface of the upper air duct plate 210, and the upper air duct plate 210 has a water receiving space 2101 for the indoor heat exchanger 510. The water receiving space 2101 is used to receive the condensate generated by the indoor heat exchanger 510 in the cooling state. Further, a portion of the upper air duct plate 210 is recessed downwards to form a drain groove 211. Condensate flows into the drain groove 211 and is discharged through a detachable external drain fitting. Further, the external drain fitting includes a drain connector 212, on which a detachable drain cover is provided. The drain cover is screwed to the drain connector 212. When the drain cover is installed, the water in the drain groove 211 flows into the water collection box 300 through the first drain pipe 410; when the drain cover is removed, the drain connector 212 is connected to the external drain pipe to discharge the condensate to the outside. Furthermore, when there is a large amount of condensate produced by the indoor heat exchanger 510, the condensate can be drained through both the outdoor drain pipe and the first drain pipe 410.

[0057] Optionally, the indoor heat exchanger 510 is a multi-section heat exchanger with bent connections, such as an L-shaped heat exchanger, a U-shaped heat exchanger, or L-shaped heat exchangers arranged end to end. Correspondingly, the water receiving space 2101 matches the shape of the indoor heat exchanger 510.

[0058] Optionally, an indoor fan is also provided in the indoor cavity 101 to drive the flow of indoor air.

[0059] Optionally, the water collection box 300 is formed on the lower air duct plate 220 and located outside the volute 230. This avoids problems such as condensate causing corrosion of the outdoor fan. Optionally, the water collection box 300 is arranged above the outdoor condenser 520, and the lower air duct plate 220 is provided with water distribution holes 221 corresponding to the outdoor heat exchanger 520. The condensate in the water collection box 300 can drip onto the surface of the outdoor heat exchanger 520 through the water distribution holes 221, thereby cooling the outdoor heat exchanger 520 and improving the utilization rate of the cooling capacity in the condensate. Optionally, multiple water distribution holes 221 are spaced apart along the width direction of the outdoor heat exchanger 520, and multiple rows are spaced apart along the length direction of the outdoor heat exchanger 520.

[0060] Optionally, the water collection box 300 and the downdraft duct plate 220 are integrally formed.

[0061] Optionally, to improve the discharge efficiency of condensate generated by the indoor heat exchanger 510 into the water collection box 300, in addition to a first drain pipe 410 connected to the drain trough 211, a second drain pipe 420 directly connected to the water receiving space 2101 is also provided. The top end of the first drain pipe 410 is connected to the drain trough 211, and the bottom end of the first drain pipe 410 extends downward into the water collection box 300; the top end of the second drain pipe 420 is connected to the water receiving space 2101, and the bottom end of the second drain pipe 420 extends downward into the water collection box 300.

[0062] To reduce the noise from condensate flowing into the water collection box 300 from the first drain pipe 410 and the second drain pipe 420, the first drain pipe 410 is provided with a first flat sidewall 413 parallel to the water collection sidewall 310, and the second drain pipe 420 is provided with a second flat sidewall 423 parallel to the water collection sidewall 310. In this design, the first flat sidewall 413 and the second flat sidewall 423 are arranged close to the water collection sidewall 310. This ensures that most of the condensate flowing into the first drain pipe 410 and the second drain pipe 420 flows along the first flat sidewall 413 and the second flat sidewall 423 to the water collection sidewall 310, and then flows downwards along the water collection sidewall 310, thereby significantly reducing dripping noise and lowering the noise level of the portable air conditioner.

[0063] Optionally, the first plate sidewall 413 and the second plate sidewall 423 are close to the water collection sidewall 310 located on the same side. Alternatively, the first plate sidewall 413 and the second plate sidewall 423 are close to the water collection sidewall 310 located on different sides.

[0064] Alternatively, the first drain pipe 410 may not be provided.

[0065] Alternatively, a second drain pipe 420 may not be provided.

[0066] With the above technical solution, the condensate in the water receiving space 2101 and / or drainage trough 211 can be guided to the water collection box 300 through the first drain pipe 410 and the second drain pipe 420. By having the first drain pipe 410 with a first flat sidewall 413 parallel and close to the water collection sidewall 310, and the second drain pipe 420 with a second flat sidewall 423 parallel and close to the water collection sidewall 310, most of the condensate flowing into the first drain pipe 410 and the second drain pipe 420 can flow along the first flat sidewall 413 and the second flat sidewall 423 to the water collection sidewall, and then flow downwards along the water collection sidewall 310. This can largely eliminate dripping noise, reduce the noise of the portable air conditioner, and improve user comfort and experience.

[0067] In an optional embodiment of the above-mentioned portable air conditioner, the inner wall surface of the first flat plate sidewall 413 is provided with guide ribs 414 extending from top to bottom.

[0068] By setting the guide ribs 414 extending from top to bottom, the flow path of condensate can be limited, improving the downward flowability of condensate. In addition, the setting of the guide ribs 414 can increase the bending, torsional and compressive strength of the first plate sidewall 413, thereby improving the structural strength.

[0069] Optionally, guide ribs 414 are not provided.

[0070] Optionally, a guide strip is provided on the plane where the guide rib 414 intersects with the side wall 413 of the first plate. The guide strip slopes downward from top to bottom to guide the condensate to the surface of the side wall 413 of the first plate and reduce water flow noise.

[0071] Optionally, the inner wall surface of the second plate sidewall 423 is also provided with guide ribs extending from top to bottom.

[0072] Alternatively, the inner wall surface of the second plate sidewall 423 is not provided with guide ribs.

[0073] In the optional implementation of the above-mentioned portable air conditioner, the guide rib 414 includes a first section 4141 and a second section 4142 distributed vertically. The first section 4141 is arranged vertically, and the second section 4142 is arranged inclined from top to bottom toward the side wall 413 of the first flat plate.

[0074] By arranging the second section 4142 at an angle from top to bottom toward the side wall 413 of the first plate, the inertia and tendency of the condensate flowing to the second section 4142 toward the side wall 413 of the first plate can be controlled, so that most of the condensate in the first drain pipe can flow downward along the side wall of the first plate, thereby reducing noise.

[0075] Alternatively, only the first segment 4141 can be set.

[0076] Alternatively, only the second segment 4142 can be set.

[0077] In an optional embodiment of the above-mentioned portable air conditioner, the first drain pipe 410 further has a first arcuate sidewall 415 connected to the first flat sidewall 413; the bottom end of the first arcuate sidewall 415 is higher than the bottom end of the first flat sidewall 413.

[0078] By setting the bottom end of the first arc-shaped sidewall 415 higher than the bottom end of the first flat sidewall 413, the condensate flowing from the first drain pipe 410 can be better guided to flow downwards along the first flat sidewall 413, thereby reducing dripping noise. Specifically, when the condensate flows downwards along the first arc-shaped sidewall 415, it can flow along the side of the bottom end of the first arc-shaped sidewall 415 towards the first flat sidewall 413, thereby reducing water flow noise.

[0079] Alternatively, the bottom end of the first arcuate sidewall 415 is flush with the bottom end of the first flat sidewall 413.

[0080] In the alternative embodiment of the above-mentioned portable air conditioner, the top end of the second segment 4142 of the guide rib 414 is higher than the bottom end of the first arc-shaped sidewall 415.

[0081] By setting the top of the second section 4142 of the guide rib 414 to be higher than the bottom of the first arc-shaped sidewall 415, the condensate can be guided to the first flat sidewall 413 before it flows out of the space defined by the first arc-shaped sidewall 415, thereby improving the fluidity and flow rate to the first flat sidewall 413.

[0082] Alternatively, the top end of the second segment 4142 of the guide rib 414 is flush with the bottom end of the first arcuate sidewall 415; or, the top end of the second segment 4142 of the guide rib 414 is lower than the bottom end of the first arcuate sidewall 415.

[0083] In the optional implementation of the above-mentioned portable air conditioner, the first arc-shaped sidewall 415 extends vertically, or the first arc-shaped sidewall 415 extends obliquely from top to bottom toward the first flat sidewall 413.

[0084] By setting the first arc-shaped sidewall 415 to extend vertically, the structural complexity can be reduced, the deposition of impurities can be avoided, and the cleanliness inside the first drain pipe 410 can be improved, preventing bacterial growth. By setting the first arc-shaped sidewall 415 to extend obliquely from top to bottom toward the first flat sidewall 413, it helps to guide condensate water toward the first flat sidewall 413, thereby allowing a large amount of condensate water to flow downwards along the first flat sidewall 413, reducing noise.

[0085] In the optional embodiment of the above-mentioned portable air conditioner, the drainage trough 211 has a bottom trough wall 2111 and a first trough wall 2112 and a second trough wall 2113 arranged opposite to each other. The first trough wall 2112 is connected to an external drainage component, and the second trough wall 2113 is arranged at intervals with the first arc-shaped side wall 415 and has an overflow hole 2114. The first flat side wall 413 extends downward from the bottom trough wall 2111. The first section 4141 of the guide rib 414 is arranged flush with the side of the first arc-shaped side wall 415 and the wall surface of the second trough wall 2113 facing the first arc-shaped side wall 415.

[0086] By setting the first section 4141 of the guide rib 414 to be flush with the side of the first arc-shaped sidewall 415 and the wall of the second groove wall 2113 to be flush with the side of the first arc-shaped sidewall 415, the condensate discharged from the overflow hole 2114 can flow downward along the guide rib 414 or flow towards the first flat sidewall 413, thereby preventing the overflowing condensate from dripping directly downward into the water collection box 300.

[0087] Since the drainage channel 211 is formed by a portion of the upper air duct plate 210 recessed downwards, the first flat plate sidewall 413 is located between the first channel wall 2112 and the second channel wall 2113, and extends downwards from the bottom channel wall 2111. The first flat plate sidewall 413 is relatively close to the first channel wall 2112, so as to be adjacent to the second channel wall 2113.

[0088] Optionally, the first drain pipe 410 is integrally formed with the upper air duct plate 210.

[0089] In an optional embodiment of the above-mentioned portable air conditioner, the second drain pipe 420 further has a second arcuate sidewall 424 connected to the second flat sidewall 423; the bottom end of the second arcuate sidewall 424 is higher than the bottom end of the second flat sidewall 423.

[0090] By setting the bottom of the second arc-shaped sidewall 424 higher than the bottom of the second flat sidewall 423, the condensate flowing from the second drain pipe 420 can be better guided to flow downwards along the second flat sidewall 423, thereby reducing dripping noise. Specifically, when the condensate flows downwards along the second arc-shaped sidewall 424, it can flow along the side of the bottom of the second arc-shaped sidewall 424 towards the second flat sidewall 423, thus reducing water flow noise.

[0091] Alternatively, the bottom end of the second arcuate sidewall 424 is flush with the bottom end of the second flat sidewall 423. Or, the bottom end of the second arcuate sidewall 424 is lower than the bottom end of the second flat sidewall 423.

[0092] In the optional implementation of the above-mentioned portable air conditioner, the bottom end of the second arc-shaped sidewall 424 is arranged inclined upward from the inside out.

[0093] By arranging the bottom end of the second arc-shaped sidewall 424 at an upward and outward angle, the condensate flowing along the second arc-shaped sidewall 424 can flow along the edge of the bottom end of the second arc-shaped sidewall 424 toward the second flat sidewall 423, thereby reducing the dripping noise of the condensate.

[0094] Optionally, the second arc-shaped sidewall 424 is arranged inclined from top to bottom toward the second flat sidewall 423. This helps to guide condensate toward the first flat sidewall 413, thereby allowing a large amount of condensate to flow downwards along the first flat sidewall 413, thus reducing noise.

[0095] In the optional implementation of the above-mentioned portable air conditioner, the upper air duct plate 210 is provided with a drain hole 213 corresponding to the water receiving space 2101, and the second drain pipe 420 is connected to the drain hole 213 and integrally formed with the upper air duct plate 210.

[0096] By connecting the second drain pipe 420 to the drain hole 213, some of the condensate in the water receiving space 2101 can flow into the second drain pipe 420 along the drain hole 213, thereby improving drainage efficiency.

[0097] By integrating the second drain pipe 420 with the upper air duct plate 210, the structural strength can be improved, and there are no gaps between the two, so there will be no leakage of condensate water and no problem of bacterial growth in the gaps.

[0098] Optionally, the upper air duct plate 210 has a recessed portion that is recessed towards the lower air duct plate 220. A drain hole is located at the lowest point of the recessed portion. This facilitates the flow of condensate to the second drain pipe 420.

[0099] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A portable air conditioner, characterized in that, include: The outer shell (100) has an internal cavity; An outdoor air duct assembly (200) separates the cavity into an indoor cavity (101) and an outdoor cavity (102) distributed vertically. The outdoor air duct assembly (200) includes an upper air duct plate (210), a lower air duct plate (220), and a volute (230). The upper air duct plate (210) is equipped with an indoor heat exchanger (510) and has a water receiving space (2101). A portion of the upper air duct plate (210) is recessed downward to form a drainage groove (211) of the water receiving space (2101). The drainage groove (211) has a detachable external drainage component. A water collection box (300) is formed on the downwind duct plate (220) corresponding to the drainage groove (211) and located outside the volute (230). The water collection box (300) includes a water collection sidewall (310) extending vertically. The first drain pipe (410) is connected to the drain trough (211) at its top end and extends downward into the water collection box (300) at its bottom end. The first drain pipe (410) has a first flat sidewall (413) that is parallel to and close to the water collection sidewall (310). The second drain pipe (420) is connected at the top to the water receiving space (2101) and extends downward to the water collection box (300). The second drain pipe (420) has a second flat sidewall (423) that is parallel to and close to the water collection sidewall (310).

2. The portable air conditioner according to claim 1, characterized in that, The inner wall surface of the first flat plate sidewall (413) is provided with guide ribs (414) extending from top to bottom.

3. The portable air conditioner according to claim 2, characterized in that, The guide rib (414) includes a first section (4141) and a second section (4142) distributed vertically. The first section (4141) of the guide rib (414) is arranged vertically, and the second section (4142) of the guide rib (414) is arranged inclined from top to bottom toward the side wall (413) of the first plate.

4. The portable air conditioner according to claim 3, characterized in that, The first drain pipe (410) also has a first arcuate sidewall (415) connected to the first flat sidewall (413); The bottom end of the first arc-shaped sidewall (415) is higher than the bottom end of the first flat sidewall (413).

5. The portable air conditioner according to claim 4, characterized in that, The top of the second section (4142) of the guide rib (414) is higher than the bottom of the first arc-shaped sidewall (415).

6. The portable air conditioner according to claim 4, characterized in that, The first arcuate sidewall (415) extends vertically, or the first arcuate sidewall (415) extends obliquely from top to bottom toward the second flat sidewall (423).

7. The portable air conditioner according to claim 4, characterized in that, The drainage trough (211) has a bottom wall (2111) and a first wall (2112) and a second wall (2113) arranged opposite to each other. The first wall (2112) is connected to the external drainage component. The second wall (2113) is spaced apart from the first arc-shaped sidewall (415) and has an overflow hole (2214). The first flat sidewall (413) extends downward from the bottom wall (2111). The first section (4141) of the guide rib (414) is arranged flush with the side of the first arc-shaped sidewall (415) and the wall surface of the second groove wall (2113) facing the first arc-shaped sidewall (415).

8. The portable air conditioner according to claim 1, characterized in that, The second drain pipe (420) also has a second arcuate sidewall (424) connected to the second flat sidewall (423); The bottom end of the second arc-shaped sidewall (424) is higher than the bottom end of the second flat sidewall (423).

9. The portable air conditioner according to claim 8, characterized in that, The bottom end of the second arc-shaped sidewall (424) is arranged inclined upward from the inside out.

10. The portable air conditioner according to any one of claims 1 to 9, characterized in that, The upper air duct plate (210) is provided with a drain hole (213) corresponding to the water receiving space (2101), and the second drain pipe (420) is connected to the drain hole (213) and integrally formed with the upper air duct plate (210).

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