A mobile air conditioner

Abstract

The present invention provides a mobile air conditioner, relating to the technical field of air conditioners, and designed to address the problem of limited condensate generated by existing mobile air conditioners. The mobile air conditioner comprises an evaporator, an exhaust duct, and a condenser, arranged sequentially from top to bottom. The exhaust duct has an air cavity and an exhaust port connected to the air cavity. The duct wall of the exhaust duct is provided with a water guide, along which at least some of the condensate generated by the evaporator can flow toward the condenser. The inner wall surface of the exhaust duct is provided with a condensation portion, which is configured to divert condensate from the air cavity to the condenser. The mobile air conditioner provided by the present invention increases the amount of condensate flowing to the condenser, thereby maximizing the heat exchange capacity of the condenser.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a mobile air conditioner. Background Art

[0002] Typically, in a mobile air conditioner, condensate from the evaporator flows into the chassis, where a pumping impeller rotates to throw this condensate onto the condenser fins. According to heat transfer principles and experiments, the water enhances convective heat transfer between the fins and the air, thereby increasing the condenser's heat exchange capacity.

[0003] However, under normal working conditions, the relative humidity of the air is basically around 50%. At the same time, due to the limited area of ​​the evaporator, the amount of condensed water produced is limited, and therefore the heat exchange capacity of the condenser cannot be maximized. Summary of the Invention

[0004] The object of the present invention is to provide a mobile air conditioner to solve the technical problem of limited amount of condensed water generated by mobile air conditioners in the prior art.

[0005] The mobile air conditioner provided by the present invention includes an evaporator, an exhaust duct and a condenser arranged in sequence from top to bottom, the exhaust duct has an air cavity and an exhaust port connected to the air cavity, the air duct wall of the exhaust duct is provided with a water guide portion, and at least part of the condensed water generated by the evaporator can flow to the condenser along the water guide portion; the inner wall surface of the exhaust duct is provided with a condensation portion, and the condensation portion is configured to drain the condensed water in the air cavity to the condenser.

[0006] By arranging a water guide portion on the air duct wall of the exhaust duct between the evaporator and the condenser, the water guide portion is used to guide at least part of the condensed water generated by the evaporator to the condenser. In the process of this part of the condensed water flowing to the condenser through the water guide portion, the temperature of the air duct wall of the exhaust duct will be reduced due to the low temperature of the condensed water, so that the water vapor in the air flow in the wind cavity can condense into liquid water in the condensation portion and further be guided to the condenser, so that the amount of condensed water flowing to the condenser is increased, thereby maximizing the heat exchange capacity of the condenser and improving the overall performance and energy efficiency of the mobile air conditioner.

[0007] In addition, by increasing the amount of condensed water flowing to the condenser, the amount of water thrown away by the water-pumping impeller is also increased, which not only ensures the continuity of the water-throwing process, but also continuously enhances the heat exchange effect of the condenser and improves the operating stability of the mobile air conditioner. Moreover, it can ensure the continuity of the water-throwing sound, making the mobile air conditioner sound better during use and avoiding the generation of intermittent noise.

[0008] Furthermore, the water guide is located on the side of the exhaust passage facing away from the air cavity. This arrangement allows condensed water generated by the evaporator to flow only from the outside of the exhaust passage to the condenser, ensuring the relative dryness of the air cavity and preventing the airflow from the exhaust port from being mixed with a large amount of liquid water.

[0009] Furthermore, the mobile air conditioner includes a drainage channel disposed between the evaporator and the condenser, with at least a portion of the drainage channel being aligned with the exhaust channel, and the water guide being disposed in the channel portion of the drainage channel aligned with the exhaust channel. The drainage channel serves to collect and drain condensed water generated by the evaporator, allowing the condensed water to flow smoothly to the condenser.

[0010] Furthermore, the water guide portion includes a water guide hole, a first water flow channel, and a drainage hole, wherein the water guide hole is provided on the upper wall of the drainage channel, the drainage hole is provided on the lower wall of the drainage channel, and the first water flow channel is provided on the inner wall of the drainage channel, connecting the water guide hole and the drainage hole. This arrangement eliminates the need for complex processing of the exhaust channel, thereby reducing the processing cost of the exhaust channel.

[0011] Furthermore, a water storage cavity is provided on the upper surface of the drainage channel, and the water storage cavity includes a cavity bottom wall and cavity side walls provided along the contour of the cavity bottom wall, and the cavity side walls include a first side wall and a second side wall, wherein the cavity bottom wall is formed by the upper wall of the drainage channel, the first side wall is formed by the air duct wall of the exhaust channel, and the second side wall is used to form the outer contour wall of the drainage channel, and the water guide hole is located at the connection between the first side wall and the cavity bottom wall. By providing a water storage cavity, it can play a certain role in containing condensed water and prevent condensed water from overflowing to the surroundings. Moreover, by providing the water guide hole at the connection between the first side wall and the cavity bottom wall of the water storage cavity, the flow path of the condensed water is shortened, so that the condensed water generated by the evaporator can flow to the first water flow channel in a timely manner.

[0012] Furthermore, the number of the water guide holes is multiple, and / or the number of the first water flow channels is multiple, and / or the number of the drainage holes is multiple. Such an arrangement can increase the flow rate of the drainage channel, thereby accelerating the transfer of condensed water cooling to the air duct wall, thereby improving the condensation efficiency and sufficiency of water vapor in the airflow of the air cavity.

[0013] Furthermore, the condensation portion includes a second water flow channel and a water leakage hole connected to the second water flow channel, wherein the second water flow channel is arranged at an angle θ with the horizontal plane. This arrangement allows condensed water in the second water flow channel to flow smoothly to the water leakage hole, preventing condensed water from accumulating on the air duct wall. This allows nearly all condensed water formed in the condensation portion to flow to the condenser, thereby maximizing the heat exchange capacity of the condenser.

[0014] Furthermore, 60°≤θ≤75°. This configuration not only avoids the situation where condensate water stays on the side wall of the second water flow channel for a long time during the airflow due to an excessively large θ, thereby slowing the flow of condensate water toward the leakage hole, but also avoids the disadvantage of condensate water being blown out of the exhaust port due to an excessively small θ, thereby ensuring relatively dry air.

[0015] Furthermore, the condensation unit further includes a water blocking channel, located downstream of the second water flow channel along the direction of airflow toward the exhaust port. The water blocking channel is configured to prevent condensed water within the second water flow channel from flowing out of the exhaust port. The water leakage hole is connected to the lower end of the water blocking channel. By providing the wind blocking channel, condensed water overflowing from the second water flow channel is blocked, effectively preventing condensed water within the second water flow channel from flowing out of the exhaust port, and improving the user experience of the mobile air conditioner of this embodiment.

[0016] Furthermore, the condensation portion and the water guide portion are arranged back to back, so that the condensed water flowing through the water guide portion can specifically cool the condensation portion area of ​​the air duct wall, so that the water vapor in the air flow in the air cavity is quickly condensed into liquid water in the condensation portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the main structure of a mobile air conditioner provided in an embodiment of the present invention;

[0019] Figure 2 A top view of a partial structure of a mobile air conditioner provided by an embodiment of the present invention;

[0020] Figure 3 for Figure 2 AA section view in;

[0021] Figure 4 This is a schematic diagram of a partial structure of a mobile air conditioner provided by an embodiment of the present invention;

[0022] Figure 5 for Figure 4 A magnified view of the local structure at point B in the middle;

[0023] Figure 6 A side view of a partial structure of a mobile air conditioner provided by an embodiment of the present invention;

[0024] Figure 7 for Figure 6 The CC section view in the figure;

[0025] Figure 8 for Figure 7 A magnified view of the local structure at point D in the middle;

[0026] Figure 9 The second schematic diagram of the partial structure of the mobile air conditioner provided by the embodiment of the present invention;

[0027] Figure 10 for Figure 9 EE cross-sectional view in;

[0028] Figure 11 for Figure 10 Enlarged view of the local structure at F in the middle.

[0029] Description of reference numerals:

[0030] 100-evaporator; 200-exhaust channel; 300-condenser; 400-water guide; 500-condensation part; 600-drainage channel; 700-water storage chamber;

[0031] 210-air cavity; 220-air outlet;

[0032] 410 - water guide hole; 420 - first water flow channel; 430 - drainage hole;

[0033] 510 - second water flow channel; 520 - water leakage hole; 530 - water retaining channel;

[0034] 710 - cavity bottom wall; 720 - cavity side wall; 721 - first side wall; 722 - second side wall. DETAILED DESCRIPTION

[0035] Due to the limited amount of condensed water generated, existing mobile air conditioners cannot maximize the condenser's heat exchange capacity. Furthermore, the small amount of condensed water and the hysteresis caused by the condensed water flow in the water channel cause the impeller's water-splitting process to be intermittent. This not only results in a certain intermittent effect on the condenser's heat exchange, but also causes intermittent sound during the condenser's operation, making the mobile air conditioner less pleasant to listen to.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] Figure 1 This is a schematic diagram of the main structure of the mobile air conditioner provided in this embodiment. Figure 1 As shown, this embodiment provides a mobile air conditioner, including an evaporator 100, an exhaust duct 200 and a condenser 300 arranged in sequence from top to bottom, wherein the exhaust duct 200 has an air cavity 210 and an exhaust port 220 connected to the air cavity 210.

[0038] Figure 2 This is a top view of the local structure of the mobile air conditioner provided in this embodiment. Figure 3 for Figure 2 In the AA section view, Figure 4 This is one of the partial structural diagrams of the mobile air conditioner provided in this embodiment. Figure 5 for Figure 4 A magnified view of the local structure at point B in the middle. Figure 6 This is a side view of the partial structure of the mobile air conditioner provided in this embodiment. Figures 2 to 6 As shown, specifically, the air duct wall of the exhaust duct 200 is provided with a water guide portion 400, and at least part of the condensed water generated by the evaporator 100 can flow to the condenser 300 along the water guide portion 400; the inner wall surface of the exhaust duct 200 is provided with a condensation portion 500, and the condensation portion 500 is configured to drain the condensed water in the wind cavity 210 to the condenser 300.

[0039] By arranging a water guide portion 400 on the air duct wall of the exhaust duct 200 between the evaporator 100 and the condenser 300, the water guide portion 400 is used to guide at least part of the condensed water generated by the evaporator 100 to the condenser 300. In the process of this part of the condensed water flowing to the condenser 300 through the water guide portion 400, due to the low temperature of the condensed water, the temperature of the air duct wall of the exhaust duct 200 will be reduced, so that the water vapor of the air flow in the wind cavity 210 can condense into liquid water in the condensation portion 500 and further be guided to the condenser 300, so that the amount of condensed water flowing to the condenser 300 is increased, thereby maximizing the heat exchange capacity of the condenser 300 and improving the overall performance and energy efficiency of the mobile air conditioner.

[0040] In addition, by increasing the amount of condensed water flowing to the condenser 300, the amount of water thrown away by the impeller is also increased, which not only ensures the continuity of the water throwing process, but also continuously enhances the heat exchange effect of the condenser 300 and improves the operating stability of the mobile air conditioner. Moreover, it can also ensure the continuity of the water throwing sound, so that the mobile air conditioner has a better hearing experience during use and avoids the generation of intermittent noise.

[0041] It should be noted that, in this embodiment, the flow position and flow direction of the condensed water in the mobile air conditioner are Figure 1 As shown by arrow a.

[0042] It should also be noted that the temperature of the condensed water generated by the evaporator 100 is generally around 16°C. Using this condensed water to cool the duct wall of the exhaust duct 200 maintains a temperature of around 18°C ​​on the side of the duct wall facing the air cavity 210. In general, in experimental tests, the dry-bulb temperature of the air cavity 210 is 47°C, the wet-bulb temperature is 28°C, and the dew point temperature is 21°C. Therefore, when the duct wall surface temperature (18°C) is lower than the dew point temperature of the air near the wall (21°C), water vapor in the airflow of the air cavity 210 will condense into liquid on the duct wall surface.

[0043] Preferably, the condensation portion 500 is disposed opposite the water guide portion 400. This arrangement allows the condensed water flowing through the water guide portion 400 to specifically cool the condensation portion 500 area of ​​the air duct wall, allowing the water vapor in the airflow of the air cavity 210 to quickly condense into liquid water in the condensation portion 500 and then flow to the condenser 300.

[0044] Please continue to refer to Figures 3 to 5 In this embodiment, the water guide portion 400 is located on a side of the exhaust channel 200 away from the air cavity 210 .

[0045] By arranging the water guide part 400 on the side of the exhaust channel 200 away from the wind cavity 210, the condensed water generated by the evaporator 100 can only flow from the outside of the exhaust channel 200 to the condenser 300, thereby ensuring the relative dryness of the wind cavity 210 and avoiding the situation where the air flow blown out by the exhaust port 220 is mixed with a large amount of liquid water. At the same time, the condensed water generated by the evaporator 100 can flow to the condenser 300 as much as possible to enhance the heat exchange capacity of the condenser 300.

[0046] Please continue to refer to Figure 1 、 Figure 2 and Figure 4 In this embodiment, the mobile air conditioner may further include a drainage channel 600 arranged between the evaporator 100 and the condenser 300, wherein at least part of the channel section of the drainage channel 600 is arranged in contact with the exhaust channel 200, and the water guide 400 is arranged in the channel section of the drainage channel 600 that is in contact with the exhaust channel 200.

[0047] The setting of the drainage channel 600 can play a certain role in collecting and draining the condensed water generated by the evaporator 100, so that the condensed water generated by the evaporator 100 can flow smoothly to the condenser 300. On the one hand, it ensures the smoothness of the flow of the condensed water. On the other hand, it also avoids the splashing of the condensed water to other areas inside the mobile air conditioner, so that the condensed water can be utilized to the greatest extent.

[0048] Figure 7 for Figure 6 In the CC section view, Figure 8 for Figure 7 The enlarged view of the local structure at D in the middle. Please continue to refer to Figure 3 and Figure 5 , and combined with Figure 7 and Figure 8 In this embodiment, the water guide part 400 includes a water guide hole 410, a first water flow channel 420 and a drainage hole 430. Specifically, the water guide hole 410 is opened on the upper wall of the drainage channel 600, the drainage hole 430 is opened on the lower wall of the drainage channel 600, and the first water flow channel 420 is opened on the inner wall surface of the drainage channel 600, wherein the first water flow channel 420 connects the water guide hole 410 and the drainage hole 430.

[0049] During operation of the mobile air conditioner, condensed water generated by the evaporator 100 flows through the water guide hole 410 to the first water flow channel 420, flows downward along the first water flow channel 420, and finally drips into the condenser 300 through the drainage hole 430. As the condensed water flows downward along the first water flow channel 420, the cold energy in the condensed water is transferred to the air duct wall of the exhaust duct 200, cooling the air duct wall. The cooled air duct wall then collects water vapor from the airflow in the air cavity 210.

[0050] By positioning the first water flow channel 420 on the inner wall of the drain channel 600, the condensed water generated by the evaporator 100 cools the exhaust channel 200 as it flows downward through the drain channel 600, resulting in high cooling efficiency. Furthermore, this arrangement eliminates the need for complex machining of the exhaust channel 200, reducing the cost of machining the exhaust channel 200.

[0051] Please continue to refer to Figure 4 and Figure 5 In this embodiment, a water storage cavity 700 is provided on the upper surface of the drainage channel 600. Specifically, the water storage cavity 700 includes a cavity bottom wall 710 and a cavity side wall 720 arranged along the contour of the cavity bottom wall 710. The cavity side wall 720 includes a first side wall 721 and a second side wall 722. The cavity bottom wall 710 is formed by the upper wall of the drainage channel 600, the first side wall 721 is formed by the air duct wall of the exhaust channel 200, and the second side wall 722 is used to form the outer contour wall of the drainage channel 600. The water guide hole 410 is located at the connection between the first side wall 721 and the cavity bottom wall 710.

[0052] The provision of the water storage chamber 700 serves to contain condensed water to a certain extent, preventing it from overflowing. Furthermore, by positioning the water guide hole 410 at the junction of the first side wall 721 and the bottom wall 710 of the water storage chamber 700, the flow path of the condensed water is shortened, allowing the condensed water generated by the evaporator 100 to flow promptly to the first water flow channel 420, thereby rapidly cooling the air duct walls. This, on the one hand, reduces cooling loss, allowing as much water vapor in the airflow of the air cavity 210 as possible to condense into liquid water in the condensation portion 500. On the other hand, it improves the efficiency of condensing water vapor into liquid water, thereby further ensuring the performance of the mobile air conditioner of this embodiment.

[0053] Please continue to refer to Figure 3 and Figure 5 In this embodiment, the number of the water guide holes 410 is three, and the number of the first water flow channels 420 is also three, wherein the three first water flow channels 420 are respectively provided in a one-to-one correspondence with the three water guide holes 410 .

[0054] By providing a plurality of water guide holes 410 and a plurality of first water flow channels 420 respectively connected to each water guide hole 410, on the one hand, the condensed water generated by the evaporator 100 can flow toward the condenser 300 as quickly as possible, thereby increasing the flow rate of the condensed water. On the other hand, the provision of the plurality of first water flow channels 420 also increases the distribution area of ​​the first water flow channels 420 on the air duct wall, thereby accelerating the transfer of the cooling capacity of the condensed water to the air duct wall, and further improving the condensation efficiency and sufficiency of the water vapor in the air flow of the air cavity 210.

[0055] In other embodiments, it is understandable that the number of water guide holes 410 and the number of first water flow channels 420 can also be other forms, such as: the number of water guide holes 410 is two, the number of first water flow channels 420 is two, etc., or the number of water guide holes 410 and the number of first water flow channels 420 can also be different.

[0056] Please continue to refer to Figure 7 and Figure 8 In this embodiment, there are three drain holes 430. Providing three drain holes 430 allows the condensed water in the drain channel 600 to flow toward the condenser 300 in a timely manner, reducing the time the condensed water accumulates in the drain channel 600 and increasing the amount of water flowing to the condenser 300 per unit time.

[0057] In other embodiments, the number of the drainage holes 430 may also be two, four, etc., as long as the condensed water in the drainage channel 600 can be quickly discharged through this number of drainage holes 430 .

[0058] Figure 9 This is the second partial structural diagram of the mobile air conditioner provided in this embodiment. Figure 10 for Figure 9 Please continue to refer to the EE section view in Figure 6 , and combined with Figure 9 and Figure 10 In this embodiment, the condensation portion 500 may include a second water flow channel 510 and a water leakage hole 520 connected to the second water flow channel 510, wherein the second water flow channel 510 is set at an angle θ with the horizontal plane.

[0059] Figure 11 for Figure 10 The enlarged view of the local structure at F in the middle. Figure 10 As shown, when the water vapor in the airflow of the wind cavity 210 condenses into liquid water in the second water flow channel 510, the liquid water is affected by its own gravity F1 on the one hand and the blowing force F2 of the airflow of the wind cavity 210 on the other hand, so that the resultant force acting on the liquid water is along the direction of F0, that is, the resultant force acting on the liquid water is along the direction of θ, so that the liquid water formed in the second water flow channel 510 will flow along the direction of the second water flow channel 510 and finally be discharged from the water leakage hole 520.

[0060] Such a configuration allows the condensed water in the second water flow channel 510 to flow smoothly to the leakage hole 520, avoiding the accumulation of condensed water on the air duct wall, so that almost all the condensed water formed in the condensation part 500 can flow to the condenser 300, thereby maximizing the heat exchange capacity of the condenser 300.

[0061] Please continue to refer to Figure 11Preferably, 60°≤θ≤75°. This configuration not only prevents condensate from remaining on the sidewalls of the second water flow channel 510 for a prolonged period during airflow due to an excessively large θ, thereby slowing the flow of condensate toward the water leakage hole 520, but also avoids the disadvantage of condensate being blown out of the air outlet 220 due to an excessively small θ, thereby ensuring relatively dry air.

[0062] Please continue to refer to Figure 10 and Figure 11 In this embodiment, the condensation part 500 may further include a water blocking channel 530. Specifically, along the direction of the air flow discharging toward the exhaust port 220, the water blocking channel 530 is located downstream of the second water flow channel 510, wherein the water blocking channel 530 is configured to prevent the condensed water inside the second water flow channel 510 from flowing out of the exhaust port 220; the leakage hole 520 is connected to the lower end of the water blocking channel 530.

[0063] By setting up the wind blocking channel, the condensed water overflowing from the second water flow channel 510 is blocked, effectively avoiding the condensed water inside the second water flow channel 510 from flowing out of the exhaust port 220, thereby improving the user experience of the mobile air conditioner in this embodiment.

[0064] Please continue to refer to Figure 10 and Figure 11 In this embodiment, there are multiple second water flow channels 510 , and the multiple second water flow channels 510 are dispersedly arranged along the direction of the air flow toward the exhaust port 220 .

[0065] Such a setting can increase the distribution area of ​​the condensation part 500 on the air duct wall, so that the water vapor in the air flow in the wind cavity 210 can be more fully condensed into liquid water, thereby achieving sufficient collection of water vapor, further increasing the amount of condensed water flowing to the condenser 300, and further improving the heat exchange capacity of the condenser 300.

[0066] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

[0067] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0068] In the above embodiments, the descriptions of directions such as “upper”, “lower”, and “side” are all based on the drawings.

[0069] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mobile air conditioner, characterized in that: The invention comprises an evaporator (100), an exhaust channel (200) and a condenser (300) arranged in sequence from top to bottom, wherein the exhaust channel (200) has an air cavity (210) and an exhaust port (220) communicating with the air cavity (210), and an air channel wall of the exhaust channel (200) is provided with a water guide portion (400), and at least part of the condensed water generated by the evaporator (100) can flow along the water guide portion (400) to the condenser (300); a condensation portion (500) is provided on the inner wall surface of the exhaust channel (200), and the condensation portion (500) is configured to guide the condensed water in the air cavity (210) to the condenser (300); the condensation portion (500) comprises a water leakage hole (520), a second water flow channel (510) and a water blocking channel (530), and the second water flow channel (510) and the water blocking channel (530) are connected to each other. 0) are both connected to the water leakage hole (520); along the direction of air flow discharged toward the exhaust port (220), the water blocking channel (530) is located downstream of the second water flow channel (510), and the water blocking channel (530) is configured to prevent condensed water inside the second water flow channel (510) from flowing out of the exhaust port (220); the water leakage hole (520) is connected to the lower end of the water blocking channel (530), and the water guide portion (400) is located on the side of the exhaust channel (200) away from the wind cavity (210); the mobile air conditioner further comprises a drainage channel (600) arranged between the evaporator (100) and the condenser (300), and at least part of the channel section of the drainage channel (600) is arranged in contact with the exhaust channel (200); the condensation portion (500) and the water guide portion (400) are arranged in back-to-back relationship.

2. The mobile air conditioner according to claim 1, characterized in that The water guide portion (400) is provided in a channel section where the drainage channel (600) and the exhaust channel (200) are in contact with each other.

3. The mobile air conditioner according to claim 2, characterized in that: The water guide portion (400) comprises a water guide hole (410), a first water flow channel (420) and a drainage hole (430), wherein the water guide hole (410) is provided on the upper wall of the drainage channel (600), the drainage hole (430) is provided on the lower wall of the drainage channel (600), and the first water flow channel (420) is provided on the inner wall surface of the drainage channel (600), and the first water flow channel (420) communicates the water guide hole (410) with the drainage hole (430).

4. The mobile air conditioner according to claim 3, characterized in that: A water storage cavity (700) is provided on the upper surface of the drainage channel (600), and the water storage cavity (700) includes a cavity bottom wall (710) and a cavity side wall (720) provided along the contour of the cavity bottom wall (710), and the cavity side wall (720) includes a first side wall (721) and a second side wall (722), wherein the cavity bottom wall (710) is formed by the upper wall of the drainage channel (600), the first side wall (721) is formed by the air duct wall of the exhaust channel (200), and the second side wall (722) is used to form the outer contour wall of the drainage channel (600), and the water guide hole (410) is located at the connection between the first side wall (721) and the cavity bottom wall (710).

5. The mobile air conditioner according to claim 3, characterized in that: The number of the water guide holes (410) is multiple, and / or the number of the first water flow channels (420) is multiple, and / or the number of the drainage holes (430) is multiple.

6. The mobile air conditioner according to any one of claims 1 to 5, characterized in that: The second water flow channel (510) is arranged at an angle θ with the horizontal plane.

7. The mobile air conditioner according to claim 6, characterized in that: 60°≤θ≤75°.

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