Drain system for a stationary air conditioner

Abstract

The present application relates to the air conditioning technical field, specifically to a kind of drainage system of parking air conditioner, parking air conditioner includes with the condenser being communicated with the ambient air of vehicle exterior and the evaporator being communicated with the cockpit of vehicle, condenser is configured with first cover shell, evaporator is configured with second cover shell, drainage system includes drainage channel unit and at least one drainage port, water gathered to drainage channel unit can be discharged to the outside of vehicle via at least one drainage port, wherein, drainage channel unit includes: condenser drainage channel, specifically: chassis is provided with condenser support rib in the position corresponding to first cover shell, and chassis forms condenser drainage channel in the position between condenser support rib and first cover shell;At least one evaporator drainage channel, specifically: at least one evaporator support rib is provided in the position corresponding to second cover shell in chassis, and at least one evaporator drainage channel is formed in the position between at least one evaporator support rib and second cover shell in chassis.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, in particular to a drainage system of a parking air conditioner. BACKGROUND

[0002] With the rapid development of related technologies in the field of automobiles and the increase in the number of automobiles, higher requirements are put forward for the reliability, safety and comfort of automobiles. For example, in order to ensure the temperature comfort in the cabin of the automobile, a parking air conditioner is configured for the automobile. Since the vehicle is in an external environment, the condenser is directly connected with the external environment, and the evaporator is connected with the internal environment of the cabin, there is a possibility that water enters the interior of the air conditioning system. In order to ensure the use performance of the parking air conditioner, water needs to be drained in time.

[0003] However, at present, a corresponding drainage system is usually configured for the parking air conditioner to drain water outside the vehicle in time. However, the current drainage system generally has the problem that due to the limited guiding force of water, water cannot be drained in time. For example, in the case of more accumulated water, the drainage may be slow or even water may enter the interior of the parking air conditioner to affect its reliability.

[0004] Correspondingly, there is a need in the art for a new technical solution to solve the above problems. SUMMARY

[0005] The present application aims to solve the above technical problems to at least some extent, i.e., to at least some extent, solve the problem that due to the limited guiding force of water, water cannot be drained in time in the existing drainage system of the parking air conditioner.

[0006] In a first aspect, the present application provides a drainage system of a parking air conditioner, the parking air conditioner comprising a condenser connected with the ambient air outside the vehicle and an evaporator connected with the cabin of the vehicle, the condenser being provided with a first housing, the evaporator being provided with a second housing having a heat insulation function, the drainage system comprising a drainage channel unit and at least one drainage port, water collected to the drainage channel unit being able to be discharged to the outside of the vehicle through the at least one drainage port, wherein the drainage channel unit comprises: a condenser drainage channel, in particular: a condenser support rib is provided on the chassis of the parking air conditioner at a position corresponding to the first housing, the chassis forms the condenser drainage channel at a position between the condenser support rib and the first housing; at least one evaporator drainage channel, in particular: at least one evaporator support rib is provided on the chassis at a position corresponding to the second housing, the chassis forms at least one evaporator drainage channel at a position between the at least one evaporator support rib and the second housing.

[0007] In the technical scheme, the multiple condenser support ribs and the evaporator support ribs are arranged and matched with the first shell and the second shell (for example, the second shell is a foam air duct) to form multiple drainage channels to realize multidirectional drainage, so that water in the condenser, the evaporator and the surrounding environment can be guided to the corresponding drainage openings through the corresponding drainage channels, thereby ensuring that the water can be discharged to the outside of the vehicle in time through the drainage openings, and the phenomenon that water enters the dry area (for example, the electric control part) in the interior of the parking air conditioner due to the failure of water to be discharged in time is avoided. The multiple drainage channels can provide multiple safety protections for the dry area in the interior of the parking air conditioner, thereby effectively protecting the dry area in the interior of the parking air conditioner and ensuring the use performance of the parking air conditioner.

[0008] The condenser support rib is integrally formed with the bottom disc structure and is arranged on the outer side of the first shell (for example, the first shell is provided with an air outlet grid capable of communicating with the external environment, and a fan and a motor are arranged on the first shell to facilitate heat exchange between the condenser and the external air), and a gap is formed between the condenser support rib and the first shell. In this way, the condenser drainage channel can be formed between the side edge of the first shell and the condenser support rib.

[0009] It can be understood that the skilled in the art can reasonably and flexibly adjust the structure (for example, the height and the direction) of the condenser support rib, the number of the condenser support ribs and the relative position (the width of the gap) between the condenser support ribs and the outer wall of the first shell. For example, the structure of the condenser support rib can be single or two-section, and the first shell can form two condenser drainage channels. In addition, by increasing the distance between the condenser support rib and the first shell and the height of the condenser support rib, or adjusting the direction of the condenser support rib (for example, extending outward in an arc shape), a larger condenser drainage channel can be obtained, which is communicated with the two drainage openings respectively to better realize the drainage function.

[0010] In the preferred technical scheme of the drainage system of the parking air conditioner, the at least one evaporator support rib includes a first evaporator support rib, the first evaporator support rib is arranged on the inner side of the second shell, and the at least one evaporator drainage channel includes a first evaporator drainage channel. The bottom disc forms the first evaporator drainage channel at the position corresponding to the inner side of the second shell and the first evaporator support rib.

[0011] In the technical scheme, a specific structure of the first evaporator drainage channel is provided.

[0012] Similar to the condenser support ribs described above, the skilled person can reasonably and flexibly adjust the structural form (such as height, direction), number and relative position (gap width) between the first evaporator support ribs and the inner wall of the second shell according to the actual situation, for example, the direction of the first evaporator support ribs can be the same as or different from the direction of the inner wall of the second shell, based on which different areas and shapes of the first evaporator drainage channel can be formed. The height of the first evaporator support ribs can be adjusted according to different drainage requirements, so that the top of the first evaporator support ribs is in contact with the inner wall of the second shell, or a certain space is left between the top of the first evaporator support ribs and the inner wall of the second shell.

[0013] In the preferred technical solution of the above-mentioned drainage system of the stationary air conditioner, the first evaporator support rib includes at least one section distributed along the circumference of the second shell.

[0014] In the case of using the above technical solution, a specific structural form of the first evaporator support rib is given.

[0015] It can be understood that the skilled person can determine the number of sections included in the first evaporator support rib, the structural form of each section and its distribution inside the shell according to actual needs. Specifically, without interfering with the original structure of the chassis, the skilled person can arrange a section or several sections of the first evaporator support rib at any position along the circumference of the second shell, for example, a section or several sections of the first evaporator support rib can be arranged at a portion of the second shell close to the condenser, or at a portion of the second shell away from the condenser, or at both portions. Taking the case of arranging the first evaporator support rib at both portions as an example, the structures of the first evaporator support rib corresponding to the two portions can be the same or different, for example, both are approximately symmetrical structures.

[0016] In the preferred technical solution of the above-mentioned drainage system of the stationary air conditioner, the first evaporator support rib is arranged at a portion of the second shell close to the condenser.

[0017] In the case of using the above technical solution, a specific arrangement position of the first evaporator support rib is given.

[0018] Based on this, the first evaporator support rib and the first evaporator drainage channel formed on the inner side of the second shell can collect water flow and guide the water flow to the drainage port, so as to discharge the vehicle through the drainage port.

[0019] In the preferred technical solution of the above-mentioned drainage system of the stationary air conditioner, the at least one evaporator support rib includes a second evaporator support rib, the second evaporator support rib is located on the outside of the second shell, and the chassis forms the second evaporator drainage channel at a position corresponding to the outside of the second shell and the second evaporator support rib.

[0020] In the above technical solution, a specific structure of the second evaporator drainage channel is provided.

[0021] Similar to the first evaporator support rib, the structure (trend, height), number and relative position to the outer side of the second shell of the second evaporator support rib can be reasonably and flexibly adjusted by those skilled in the art without affecting the internal structure of the stationary air conditioner and the normal use of the indoor dry area. For example, the second evaporator support rib can be integrally formed with the chassis in a cast manner, and the second evaporator support rib can be arranged according to the trend of the outer side of the second shell, or can be freely arranged, thereby forming different second evaporator drainage channels.

[0022] In the preferred technical solution of the above drainage system of the stationary air conditioner, the second evaporator support rib is arranged on the outer side of the second shell away from the condenser.

[0023] In the above technical solution, a specific implementation of the installation position of the second evaporator support rib is provided.

[0024] Therefore, the second evaporator drainage channel formed by the second evaporator support rib and the second shell can collect and guide the water flow, so that the water flow is collected in the second evaporator drainage channel and discharged out of the vehicle through the drainage port, avoiding the water reaching the inner dry area of the stationary air conditioner and thus forming a safety hazard.

[0025] In the preferred technical solution of the above drainage system of the stationary air conditioner, the second evaporator support rib includes an intermediate portion, and at least one of the first extension rib and the second extension rib is arranged at the end of the intermediate portion. The chassis forms the second evaporator drainage channel at a position corresponding to the outer side of the first extension rib and the portion of the second shell away from the condenser. The chassis forms an auxiliary water blocking channel at a position corresponding to the space between the first extension rib and the second extension rib.

[0026] In the above technical solution, a specific structure of the second evaporator support rib is provided.

[0027] Specifically, by combining the intermediate portion and the (first, second) extension rib at the end thereof, the second evaporator drainage channel with the auxiliary water blocking channel can be formed. In this way, the water flow can be better guided to the drainage port to discharge the stationary air conditioner, further ensuring the safety of the dry area (such as the electronic control part).

[0028] It is understood that those skilled in the art can flexibly adjust the structure, number, and position (such as the relative position of the first and second extension ribs, and the relative position of the middle portion of the first and second evaporator support ribs) of the first and second extension ribs. For example, the connection position of the second extension rib and the middle portion can be made closer to the middle of the second evaporator support rib, thereby lengthening the second extension rib and the auxiliary water-blocking channel to achieve a better water-blocking effect.

[0029] In the preferred embodiment of the above-mentioned parking air conditioner drainage system, the second housing includes an air duct layer and an air duct foam layer covering the outside of the air duct layer, and the chassis forms at least one evaporator drainage channel at the position of at least one evaporator support rib and the air duct foam layer.

[0030] Based on the above technical solution, a specific structural form of the second enclosure is presented. The duct foam provides waterproofing and heat insulation.

[0031] In the preferred embodiment of the above-mentioned parking air conditioner drainage system, the first cover has a side extending toward the chassis, and the side and the condenser support rib form the condenser drainage channel.

[0032] Using the above technical solution, a specific structural form of the first casing is presented. The flanged design in the first casing serves to guide water flow.

[0033] In the preferred embodiment of the above-mentioned parking air conditioner drainage system, at least a portion of the width of the condenser drainage channel is greater than the width of the evaporator drainage channel.

[0034] Using the above technical solution, a specific implementation of the width of the condenser drain channel and the evaporator drain channel is given. Attached Figure Description

[0035] The preferred embodiment of the drainage system of the parking air conditioner of the present invention will be described below with reference to the parking air conditioner and the accompanying drawings, in which:

[0036] Figure 1 This is a schematic diagram of the internal equipment of a parking air conditioner according to an embodiment of the present invention;

[0037] Figure 2 This is an internal schematic diagram of a parking air conditioner according to an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the drainage system of a parking air conditioner according to an embodiment of the present invention;

[0039] Figure 4 yesFigure 3 A magnified schematic diagram of part A in the middle;

[0040] Figure 5 yes Figure 3 An enlarged schematic diagram of part B in the middle; and

[0041] Figure 6 yes Figure 3 A magnified schematic diagram of part C in the middle.

[0042] List of reference signs

[0043] 1. Chassis;

[0044] 11. Condenser; 111. First casing;

[0045] 12. Evaporator; 121. Second casing;

[0046] 13. Electrical control components;

[0047] 14. Condenser support ribs;

[0048] 141. Condenser support rib a; 142. Condenser support rib b;

[0049] 15. Support ribs for the first evaporator;

[0050] 151. Part a of the first evaporator support rib; 152. Part b of the first evaporator support rib;

[0051] 16. Second evaporator support ribs;

[0052] 161. Middle section; 162. First extension rib A; 163. Second extension rib A; 164. First extension rib B; 165. Second extension rib B; 166. Positioning structure;

[0053] 17. Surrounding reinforcement

[0054] 18. Drain outlet; 181. Drain outlet support reinforcement;

[0055] 19. Middle passage. Detailed Implementation

[0056] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. For example, although this embodiment is described with the first evaporator support rib comprising only one (the portion near the condenser), this is not intended to limit the scope of protection of the invention. Those skilled in the art can flexibly modify it without departing from the principles of the invention, such as providing a first evaporator support rib also in the portion away from the condenser.

[0057] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "inner," and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are 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 invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] First refer to Figure 1 , Figure 1 This is a schematic diagram of the internal equipment of a parking air conditioner according to an embodiment of the present invention, as shown below. Figure 1 As shown, in one possible implementation, the chassis 1 of the parking air conditioner is equipped with a compressor, a condenser 11, an electronic expansion valve, and an evaporator 12 that form a refrigerant circulation loop. The condenser 11 exchanges heat with the air in the external environment of the vehicle, and the evaporator 12 exchanges heat with the air in the passenger compartment, thus meeting the cooling needs of the occupants. Water may accumulate inside the parking air conditioner (such as water from the external environment), but the parking air conditioner also includes components that need to be kept dry, such as the electronic control unit 13. Therefore, the parking air conditioner drainage system of the present invention mainly discharges water entering the parking air conditioner in a timely manner by constructing different drainage channels, and protects the electronic control unit 13 and other components from water ingress.

[0060] See below. Figure 2 , Figure 2 This is a schematic diagram of the internal structure of a parking air conditioner according to an embodiment of the present invention. Figure 2As shown, in this embodiment, the condenser 11 is externally equipped with a first cover 111. The first cover 111 has an air outlet grille that allows communication with the external environment and is also equipped with a fan (two fans and a motor) for ventilation, dissipating the hot air generated by the condenser to promote heat exchange between the condenser and the external air. Similarly, the evaporator 12 is also equipped with a second cover 121. Specifically, the second cover 121 is a duct foam that wraps around the evaporator 12 and the air duct (not shown) to achieve waterproofing and heat insulation. Both covers (111, 121) have a certain degree of waterproofing and can be combined with corresponding support ribs to form a drainage channel to realize the waterproofing and drainage functions of the parking air conditioner's drainage system.

[0061] See below. Figure 3 , Figure 3 This is a schematic diagram of the drainage system of a parking air conditioner according to an embodiment of the present invention. Specifically, it is a chassis 1 of the parking air conditioner equipped with supporting ribs. The chassis 1 mainly includes surrounding ribs 17, internal supporting ribs (such as condenser supporting ribs 14, first evaporator supporting ribs 15, etc.), and a planar portion. The following is in conjunction with... Figure 3 See Figure 4 , Figure 4 yes Figure 3 A magnified view of part A in the diagram. First, with... Figure 3 Based on the orientation in the middle, multiple drainage outlets are provided on the left and right sides of the chassis 1 plane, as shown in the specific structure of drainage outlet 18. Figure 4 As shown, the drain outlet 18 is a square-round hole, which effectively drains water. A triangular drain outlet support rib 181 is arranged in the middle of the hole to connect the flat part of the reinforced chassis 1 with the surrounding rib 17, so as to prevent the hole of the drain outlet 18 from causing damage to the structural stability of the chassis 1 or even causing it to break.

[0062] It is understood that, under the premise of ensuring drainage efficiency, those skilled in the art can reasonably and flexibly adjust the structure (such as the shape and size of the holes, the shape and thickness of the support ribs 181), the number of ribs, and their relative position to the chassis 1. In this embodiment, one drainage hole is configured with one drainage hole support rib, but this is not a limitation. For example, elongated drainage holes can be provided at both ends of the chassis 1 to achieve better drainage effect, but at the same time, drainage hole support ribs should be added at equal intervals in the holes, or the thickness of the drainage hole support ribs should be increased to ensure the stability of the chassis structure.

[0063] The following is combined with Figure 3 See Figure 5 , Figure 5 yes Figure 3 A magnified schematic diagram of part B in the middle. (See diagram below.) Figure 5As shown, a condenser support rib 14 is provided on the chassis 1. The condenser support rib 14 is relatively high and located on the outside of the first cover 111 on which the condenser 11 is mounted. The middle part a 141 of the condenser support rib is a straight structure and its top is flush with the top of the first cover 111. The two ends b parts 142 of the condenser support ribs are zigzag structures and are flush with and connected to the surrounding ribs 17.

[0064] In one possible implementation, the condenser support rib 14 is connected to the first cover 111. The first cover 111 is provided with hooks near the condenser support rib 14, allowing it to be hung on the condenser support rib 14 to achieve internal structural stability. The outer walls of the condenser support rib 14 and the first cover 111 form a condenser drainage channel, thereby allowing water generated by the condenser to be quickly guided through the condenser drainage channel and discharged to the outside through corresponding drain outlets.

[0065] In addition, a first evaporator support rib 15 is provided on the chassis 1, located inside the second cover 121 and close to one end of the condenser 11, and its height is relatively high. The specific height is such that it does not exceed the inner wall of the second cover 121 and can prevent water from entering the air duct from the middle part. The first evaporator support rib 15, together with the air duct and the second cover 121, forms the first evaporator drainage channel, and water can only be discharged through the first evaporator drainage channel from the drain ports on both sides of the chassis 1.

[0066] Specifically, the orientation of the first evaporator support rib a portion 151 located in the middle is basically consistent with the interior of the second casing. In addition, the first evaporator support rib b portion 152 located at both ends has reserved space for wiring and pipe routing. A portion of it is on the same straight line as the upper edge of the middle channel 19, and its end is connected to the surrounding rib 17.

[0067] In an alternative embodiment, a structure similar to the first evaporator support rib 15 can be added inside the second casing 121 on the side away from the condenser 11. Based on this, the first evaporator support rib 15 and the second casing 121 can together form an effective drainage channel around the evaporator 12.

[0068] The following is combined with Figure 3 See Figure 6 , Figure 6 yes Figure 3 A magnified schematic diagram of part C in the middle. (See diagram below.) Figure 3 and Figure 6As shown, a second evaporator support rib 16 is also provided at the end of the second casing 121 away from the condenser 11. It is mainly composed of a middle part 161, a first extension rib A162, a second extension rib A163, a first extension rib B164, and a second extension rib B165. The upper end of the middle part 161 of the second evaporator support rib 16 has space for installing components, such as the positioning structure 166 of the wire clip assembly. The rest of the part is higher. The orientation of the middle part 161 is basically consistent with the orientation of the outer side of the second casing.

[0069] In this embodiment, the end of the middle portion 16 is provided with a first extending rib A162 and a second extending rib A163. One end of each of the two (162, 163) is connected to the middle portion 16, and the other end is connected to the surrounding ribs 17. The length of each rib is less than the length of the middle portion 161. A portion of the first extending rib A near the surrounding rib 17 is parallel to the lower edge of the middle channel 19, forming a second evaporator drain channel at the outer side of the portion of the second cover 131 away from the condenser 11. This channel leads directly to the surrounding rib 17 and the corresponding drain outlet below the surrounding rib 17, thus allowing water in the second evaporator drain channel to be collected and discharged promptly. Similarly, the second extending rib A extends outward away from the middle channel 19, forming an auxiliary water-blocking channel between itself and the first extending rib A. This channel guides water to the drain outlet promptly, preventing water from entering the electronic control section 13 and keeping the electronic control section dry, ensuring the safety of the parking air conditioner.

[0070] In an alternative embodiment, the second extension rib A163 may be provided only at the left end of the middle portion 161, while the right end is not provided; or the second extension rib B165 may be provided only at the right end of the middle portion 161, while the left end is not provided. Such substitutions are readily conceived by those skilled in the art and therefore fall within the scope of protection of this invention.

[0071] As can be seen, in the drainage system of the parking air conditioner of the present invention, the condenser support ribs and evaporator support ribs can guide water in the environment to be discharged to the outside in a timely manner, avoiding the situation where water flows out of the drainage channel when the water volume is too large, thus effectively protecting the electronic control part 13. They can also effectively guide water when the flow rate is small, preventing it from staying on the chassis 1 for a long time. The first cover allows the condenser to dissipate heat, and the second cover can maintain the temperature of the evaporator; both can cooperate with the support ribs to form a drainage channel. The drain outlet allows water to pass through and be discharged, thus achieving the drainage function. Finally, the second evaporator support rib and the first and second extension ribs not only guide water out but also protect the electronic control part 13.

[0072] It should be noted that the above preferred embodiments are merely illustrative of the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above-described configurations to make the present invention applicable to more specific application scenarios.

[0073] Of course, the above-mentioned alternative implementation methods, as well as the alternative implementation methods and preferred implementation methods, can be used in combination to create new implementation methods that are suitable for more specific application scenarios.

[0074] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. In the claims of this invention, any of the claimed embodiments can be used in any combination.

[0075] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, 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 scope of protection of the present invention.

Claims

1. A drainage system for a parking air conditioner, characterized in that, The parking air conditioner includes a condenser connected to the ambient air outside the vehicle and an evaporator connected to the driver's cabin. The condenser is equipped with a first casing, and the evaporator is equipped with a second casing with heat insulation function. The drainage system includes a drainage channel unit and at least one drain outlet. Water collected in the drainage channel unit can be discharged to the outside of the vehicle through the at least one drain outlet. The drainage channel unit includes: Condenser drain channel, specifically: The chassis of the parking air conditioner is provided with a condenser support rib at a position corresponding to the first cover. The condenser support rib is located on the outside of the first cover, and the condenser support rib and the outer wall of the first cover form a condenser drainage channel. At least one evaporator drain channel, specifically: The chassis is provided with at least one evaporator support rib at a position corresponding to the second cover, and the chassis forms at least one evaporator drainage channel at the position of the at least one evaporator support rib and the second cover. The at least one evaporator support rib includes a first evaporator support rib, which is disposed on the inner side of the second housing. Accordingly, the at least one evaporator drain channel includes a first evaporator drain channel. The chassis forms the first evaporator drainage channel at a position corresponding to the inner side of the second cover and between the first evaporator support rib; The at least one evaporator support rib includes a second evaporator support rib, which is located on the outside of the second housing. The chassis forms the second evaporator drainage channel at a position corresponding to the outer side of the second housing and between the second evaporator support rib.

2. The drainage system of the parking air conditioner according to claim 1, characterized in that, The first evaporator support rib includes at least one segment distributed circumferentially along the second casing.

3. The drainage system of the parking air conditioner according to claim 2, characterized in that, The first evaporator support rib is located on the portion of the second casing near the condenser.

4. The drainage system of the parking air conditioner according to claim 1, characterized in that, The second evaporator support rib is located on the portion of the second casing away from the condenser and on the outside of the second casing.

5. The drainage system of the parking air conditioner according to claim 4, characterized in that, The second evaporator support rib includes a middle portion, and at least one of a first extension rib and a second extension rib is provided at the end of the middle portion. The chassis forms a second evaporator drain channel at a position on the outer side corresponding to the portion of the first extending rib and the second casing away from the condenser. The chassis has an auxiliary water-blocking channel formed at a position corresponding to the first extension rib and the second extension rib.

6. The drainage system of the parking air conditioner according to claim 1, characterized in that, The second housing includes an air duct layer and an air duct foam layer covering the outside of the air duct layer.

7. The drainage system of the parking air conditioner according to claim 1, characterized in that, At least a portion of the condenser drain channel is wider than the evaporator drain channel.

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