Mobile air conditioner

Abstract

The utility model discloses a mobile air conditioning equipment technical field's a mobile air conditioner, the evaporimeter and condenser are equipped with in the upper and lower interval of casing, and the air duct subassembly and water pan subassembly are arranged in the gap between both, and the air duct subassembly air inlet end is towards condenser, and the air outlet end is connected with casing air outlet, and the water pan subassembly includes: the first water pan is located evaporimeter below, and is opened first drain hole, the second water pan is located first disc below, and the annular surround frame is established in the left upper surface of second water pan, and the water of first drain hole is received, and a plurality of first water holes are opened in annular surround frame, and the air duct subassembly is placed in the right upper surface of second water pan, and a plurality of front and back arrangement, left and right extension's flow guide strip are equipped with in the lower surface of second water pan, and its at least partial is located below first water hole export, and the condensed water is guided to the right side of second water pan, the utility model solves the uneven distribution of condensate water and the technical problem that condenser cannot evenly cool when the existing device is applied in mobile air conditioner.

Description

Technical Field

[0001] This utility model relates to the field of portable air conditioning equipment technology, and in particular to a portable air conditioner. Background Technology

[0002] In existing compact portable air conditioning units, to meet the core requirements of miniaturization and portability, their internal space layout needs to be highly integrated to reduce the overall volume. The evaporator and condenser are typically arranged in a vertical stack, with the evaporator on top and the condenser below. An air duct with a fan is installed in the narrow space between them to exhaust hot, humid air (including vaporized water vapor) outside the condenser to the outside. The unit usually has a drip tray; the condensate produced by the evaporator during operation is collected in the drip tray and then channeled to the bottom of the condenser. A pump sprays water onto the condenser to aid in heat dissipation. A motor drives an impeller to rotate at high speed in the water, splashing water onto the condenser. The water volume is larger near the impeller and smaller further away, resulting in uneven water distribution.

[0003] Currently, existing technologies propose a top-down drip cooling method, which can improve the uniformity of water distribution. For example, Chinese utility model patent CN222068923U discloses a drip-type refrigeration device. This utility model includes an evaporator and a condenser, with a compressor and a throttling device connected between the evaporator and condenser. An upper water collection tray is arranged below the evaporator, and a lower water collection tray is arranged below the condenser. The upper water collection tray is positioned above the condenser and has several drip holes. This drip-type refrigeration device can use low-temperature condensate to cool the condenser, increase the subcooling of the condenser, and improve the refrigeration performance.

[0004] However, the application of the aforementioned utility model patent in portable air conditioners faces challenges. This is because the air duct of a compact portable air conditioner is located in the narrow space between the evaporator and condenser. The air duct inevitably occupies the space between the evaporator and condenser. The drip tray located above the air duct has its vertical dripping path blocked by the air duct below. The condenser surface directly below the air duct is completely blocked and cannot receive dripping condensate. Condensate can only be received in areas that are not blocked by the air duct. This results in uneven condensate distribution, preventing the condenser's heat dissipation surface from being evenly wetted and cooled. The area below the air duct suffers from insufficient heat dissipation due to lack of water, which may even lead to localized overheating. Utility Model Content

[0005] To address the technical problem of uneven condensate distribution and inconsistent cooling of the condenser when existing drip irrigation refrigeration devices are applied to portable air conditioners, this utility model provides a portable air conditioner.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A portable air conditioner includes a housing, within which an evaporator and a condenser are housed, spaced apart from top to bottom. An air duct assembly and a condensate tray assembly are disposed within the gap between the evaporator and condenser. The air inlet of the air duct assembly faces the condenser side. An exhaust port is provided on the housing, and the air outlet of the air duct assembly is connected to the exhaust port. The condensate tray assembly includes: A primary water receiving tray is located below the evaporator. The vertical projection of the evaporator onto the primary water receiving tray falls completely into the primary water receiving tray. A first drain hole is provided on the primary water receiving tray, penetrating the upper and lower surfaces of the primary water receiving tray. A secondary water receiving tray is located below the primary water receiving tray. The upper surface of the secondary water receiving tray has an annular frame on the left side. The first drain hole is connected to the annular frame. The annular frame has multiple first water guide holes that penetrate the upper and lower surfaces of the secondary water receiving tray. The air duct assembly is located on the right side of the upper surface of the secondary water receiving tray. The lower surface of the secondary water receiving tray is provided with multiple guide strips arranged at intervals along the front-back direction. Each guide strip extends from left to right. At least a portion of each guide strip is located at the lower outlet of the first water guide hole, which is used to guide the condensate flowing down from the first water guide hole to the right side of the secondary water receiving tray.

[0007] Furthermore, the water receiving tray assembly also includes a third-stage water receiving tray, which is located below the second-stage water receiving tray. The third-stage water receiving tray has multiple second water guide holes that penetrate the upper and lower surfaces of the third-stage water receiving tray. The first water guide hole and the guide strip on the second-stage water receiving tray are completely projected into the third-stage water receiving tray in their vertical projection.

[0008] Furthermore, the upper surface of the three-stage water receiving tray slopes downwards from left to right, allowing condensate to flow to the right side of the tray.

[0009] Furthermore, the lower surface of the three-stage water receiving tray is provided with multiple first ribs and multiple second ribs. A single first rib extends in the front-to-back direction, and multiple first ribs are arranged side by side at intervals in the left-to-right direction. A single second rib extends in the left-to-right direction, and multiple second ribs are arranged side by side at intervals in the front-to-back direction. The first ribs and second ribs intersect to form multiple grids, and a second water guide hole is provided in each grid.

[0010] Furthermore, a conduit is connected below the first drain hole, with the bottom end of the conduit extending into the annular frame of the secondary water receiving tray.

[0011] Furthermore, the upper surface of the secondary water receiving tray inside the annular frame slopes downwards from left to right, causing the condensate to flow to the right.

[0012] Furthermore, the first water guide hole is a strip-shaped hole.

[0013] The beneficial effects of this utility model are: This invention features a two-stage water collection tray. A ring-shaped frame on the left side of the upper surface of the tray collects condensate, while the right side of the upper surface accommodates the air duct assembly, avoiding spatial conflicts. A guide strip extending from left to right is installed on the lower surface of the tray. After passing through the first guide hole, the condensate, due to its surface tension, moves laterally along the guide strip to the area directly below the air duct assembly. This breaks away from the traditional "dripping from directly above" design, horizontally transporting the condensate around the air duct assembly to the obstructed area. This disruptive design completely solves the problem of blind spots in water distribution caused by air duct assembly obstruction, achieving full-area wetting of the condenser surface. Attached Figure Description

[0014] Figure 1 This is a sectional view of the front of the portable air conditioner of this utility model; Figure 2 This is a sectional view of the side of the portable air conditioner of this utility model; Figure 3 This is a three-dimensional schematic diagram of the concealed housing of the portable air conditioner of this utility model; Figure 4 This is a schematic diagram of the secondary water receiving tray; Figure 5 It is a bottom view of the secondary water receiving tray from below; Figure 6 This is a schematic diagram of the three-stage water receiving tray structure; Figure 7 This is a sectional view of the three-stage water receiving tray; Figure 8 It is a bottom-up view of the three-stage water receiving tray; The components in the diagram are labeled as follows: 1-shell, 2-evaporator, 3-condenser, 4-air duct assembly, 41-air inlet, 42-air outlet, 43-fan, 5-exhaust vent, 6-primary water tray, 7-first drain hole, 8-secondary water tray, 9-annular frame, 10-first water guide hole, 11-guide strip, 12-tertiary water tray, 13-second water guide hole, 14-first rib, 15-second rib, 16-conduit. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the present invention will be further described below with reference to the accompanying drawings.

[0016] First, it should be stated that the technical solutions of the embodiments of this application are clearly and completely described. The described embodiments are only some of the embodiments of this application, and not a limitation of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0017] In the description of this utility model, it should be understood that the terms "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and are not intended to indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0018] Reference Figures 1 to 8 This utility model provides a portable air conditioner.

[0019] like Figures 1 to 5 As shown, a portable air conditioner includes a housing 1, within which an evaporator 2 and a condenser 3 are disposed. The evaporator 2 and condenser 3 are arranged alternately from top to bottom. An air duct assembly 4 and a water collection tray assembly are disposed within the gap between the evaporator 2 and condenser 3. The air duct assembly 4 includes a fan 43. The air inlet 41 of the air duct assembly 4 faces the condenser 3. An exhaust port 5 is provided on the housing 1. The air outlet 42 of the air duct assembly 4 is connected to the exhaust port 5. The fan 43 is responsible for exhausting hot and humid air (including vaporized water vapor) outside the condenser 3 to the outside through the exhaust port 5. The water collection tray assembly includes: A primary water receiving tray 6 is located below the evaporator 2. The vertical projection of the evaporator 2 onto the primary water receiving tray 6 is completely inside the primary water receiving tray 6. A first drain hole 7 is provided on the primary water receiving tray 6, penetrating the upper and lower surfaces of the primary water receiving tray 6. A secondary water receiving tray 8 is located below the primary water receiving tray 6. The upper surface of the secondary water receiving tray 8 has an annular frame 9 on the left side. The first drain hole 7 is connected to the annular frame 9. The annular frame 9 has multiple first water guide holes 10 that penetrate the upper and lower surfaces of the secondary water receiving tray 8. The air duct assembly 4 is located on the right side of the upper surface of the secondary water receiving tray 8. The lower surface of the secondary water receiving tray 8 is provided with multiple guide strips 11 arranged at intervals in the front-back direction. Here, "multiple" means two or more. Each guide strip 11 extends from left to right. At least a portion of each guide strip 11 is located at the lower outlet of the first water guide hole 10, which is used to guide the condensate flowing down from the first water guide hole 10 to the right side of the secondary water receiving tray 8.

[0020] Since the condensate produced on evaporator 2 is not a large flow of water but rather small droplets, if the secondary drip tray 8 is not installed, and only the primary drip tray 6 and the tertiary drip tray 12 are designed, the condensate droplets in the primary drip tray 6 will fall into the tertiary drip tray 12. The condensate will only be distributed in a localized area below the first drain hole 7 and will drip through the second guide hole 13 of the tertiary drip tray 12, cooling only a localized area of ​​condenser 3. After designing the secondary drip tray 8, the condensate is guided and diffused from left to right. The condensate collects to a certain extent and then drips downwards, thus expanding the dripping area of ​​the condensate as much as possible, thereby increasing the distribution range of the condensate and improving the uniformity of the condensate distribution to a certain extent.

[0021] like Figure 4 and Figure 5 As shown, regarding the arrangement of the first water guide hole 10 and the guide strip 11, when condensate flows out from the first water guide hole 10, the left end of the guide strip 11 or the area near the left end of the guide strip 11 is located directly below the first water guide hole 10. The condensate flows out from the lower outlet of the first water guide hole 10 and immediately comes into contact with the guide strip 11. Due to the surface tension of the condensate, a water film is formed on the surface of the guide strip 11, rather than discrete water droplets. The condensate moves to the right from the left end of the guide strip 11 along the guide strip 11. Preferably, the surface of the guide strip 11 is hydrophilic treated, for example, by anodizing the aluminum alloy guide strip 11, or by spraying a hydrophilic coating onto the surface of the guide strip 11, such as a silica solution, a titanium dioxide photocatalytic layer, or a zwitterionic polymer, or by selecting a hydrophilic plastic, such as PVA (polyvinyl alcohol), or a modified PP material (polypropylene) or PEEK material (polyetheretherketone), to enhance the water film's extensibility. Utilizing this capillary effect, the water film can be driven to spread laterally along the narrow path of the guide strip 11 (similar to water absorption by plant fiber tubes). Specifically, the width of the guide strip 11 is 0.5mm to 2mm. The narrower width enhances capillary force and suppresses water droplet dripping. The guide strip 11 can be set horizontally or tilted downwards from left to right at 0° to 3°. A smaller tilt angle can utilize the gravity of the condensed water to assist in preventing backflow. The diameter of the first water guide hole 10 is between 0.8 mm and 1.5 mm. This ensures that the flow rate of a single first water guide hole 10 is less than or equal to 3 mL / min, preventing the condensed water from breaking through the surface tension and forming falling droplets when the flow rate is too high. Experimental verification shows that after hydrophilic treatment, the condensed water can move laterally a distance of up to 15 cm using an aluminum alloy guide strip 11 with a width of 1 mm.

[0022] like Figure 3As shown, regarding the connection between the first drain hole 7 and the annular frame 9, preferably, a conduit 16 is connected below the first drain hole 7, with the bottom end of the conduit 16 extending into the annular frame 9 of the secondary water receiving tray 8, effectively preventing splashing when condensate drips. Alternatively, the vertical projection of the first drain hole 7 onto the annular frame 9 can fall completely within the annular frame 9. Although the condensate drips from above, the perimeter of the annular frame 9 can be raised to prevent splashing. The annular frame 9 can be square, circular, or other irregularly shaped; there are no particular limitations, as long as it forms a closed enclosure.

[0023] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, the water receiving tray assembly further includes a third-stage water receiving tray 12, which is disposed below the second-stage water receiving tray 8. The third-stage water receiving tray 12 has a plurality of second water guide holes 13 penetrating the upper and lower surfaces of the third-stage water receiving tray 12. The first water guide hole 10 and the guide strip 11 on the second-stage water receiving tray 8 are completely projected into the third-stage water receiving tray 12 in their vertical projection.

[0024] like Figure 6 As shown, the second water guide hole 13 should generally be arranged in multiple rows and columns evenly, similar to a sieve, to further disperse the condensate dripping from above evenly and drip onto the condenser 3.

[0025] For the primary drip tray 6, secondary drip tray 8, and tertiary drip tray 12, generally speaking, the edges of the primary drip tray 6, secondary drip tray 8, and tertiary drip tray 12 have upwardly extending water-retaining edges. For the secondary drip tray 8 and tertiary drip tray 12, the outer contour range of both is preferably larger than the outer contour range of the condenser 3, so that the condensate in the secondary drip tray 8 and tertiary drip tray 12 drips onto the condenser 3 over the largest possible area. The first water guide hole 10 and the guide strip 11 on the secondary drip tray 8 are completely projected into the tertiary drip tray 12, so that all the condensate dripping from the first water guide hole 10 and the guide strip 11 falls into the tertiary drip tray 12 and drips evenly onto the condenser 3.

[0026] like Figures 6 to 8 As shown, to further direct the condensate flow to the right, the upper surface of the third-stage water receiving tray 12 is inclined downwards from left to right, allowing the condensate to flow to the right side of the tray. This creates an inclined guide surface on the upper surface of the third-stage water receiving tray 12, further increasing the diffusion distance of the condensate to the right, ensuring that the right side of the condenser 3 receives more condensate for wetting and cooling.

[0027] like Figure 6 and Figure 8As shown, in some embodiments, the lower surface of the three-stage water receiving tray 12 is provided with multiple first ribs 14 and multiple second ribs 15. A single first rib 14 extends in the front-to-back direction, and multiple first ribs 14 are arranged side by side at intervals in the left-to-right direction. A single second rib 15 extends in the left-to-right direction, and multiple second ribs 15 are arranged side by side at intervals in the front-to-back direction. The first ribs 14 and second ribs 15 intersect to form multiple grids, and each grid has a second water guide hole 13. This prevents the condensate flowing down from the second water guide hole 13 from spreading on the lower surface of the three-stage water receiving tray 12. That is, relying on the surface tension of the condensate, the condensate adheres to the lower surface of the three-stage water receiving tray 12 and is difficult to drip down quickly. By setting the first ribs 14 and second ribs 15 to intersect to form multiple grids, and each grid has a second water guide hole 13, the condensate in the second water guide hole 13 can be prevented from spreading around the individual grid. The grid can act as a water-blocking edge, allowing the condensate to drip down quickly.

[0028] To further direct the condensate flow to the right, the upper surface of the secondary water receiving tray 8 within the annular frame 9 is inclined downwards from left to right, causing the condensate to flow to the right. This further increases the diffusion distance of the condensate to the right, ensuring that the right side of the condenser 3 receives more condensate for wetting and cooling.

[0029] like Figure 4 and Figure 5 As shown, in some embodiments, the first water guide hole 10 is a strip-shaped hole. The first water guide hole 10 can be arranged in multiple rows and columns, preferably in two rows and columns. The first water guide hole 10 is preferably a strip-shaped hole. A narrow strip-shaped hole has a smaller flow rate and is more easily combined with the guide strip 11 to generate a capillary effect, facilitating the diffusion of condensate to the right. The flow rate is less than or equal to 3 mL / min to prevent the condensate from breaking through surface tension and forming falling droplets when the flow rate is too high. Alternatively, it can also be a round hole or a square hole, etc.

Claims

1. A portable air conditioner, comprising a housing (1), wherein an evaporator (2) and a condenser (3) are disposed within the housing (1), the evaporator (2) and the condenser (3) are arranged alternately from top to bottom, an air duct assembly (4) and a water tray assembly are disposed in the gap between the evaporator (2) and the condenser (3), the air inlet (41) of the air duct assembly (4) faces the condenser (3), an exhaust port (5) is provided on the housing (1), and the air outlet (42) of the air duct assembly (4) is connected to the exhaust port (5), characterized in that, The water tray assembly includes: A primary water receiving tray (6) is located below the evaporator (2). The vertical projection of the evaporator (2) onto the primary water receiving tray (6) is completely inside the primary water receiving tray (6). A first drain hole (7) is provided on the primary water receiving tray (6) that penetrates the upper and lower surfaces of the primary water receiving tray (6). A secondary water receiving tray (8) is located below the primary water receiving tray (6). The upper surface of the secondary water receiving tray (8) has an annular frame (9) on the left side. The first drain hole (7) is connected to the annular frame (9). The annular frame (9) has multiple first water guide holes (10) that penetrate the upper and lower surfaces of the secondary water receiving tray (8). The air duct assembly (4) is located on the right side of the upper surface of the secondary water receiving tray (8). The lower surface of the secondary water receiving tray (8) is provided with multiple guide strips (11) arranged at intervals in the front-back direction. Each guide strip (11) extends from left to right. At least part of each guide strip (11) is located at the lower outlet of the first water guide hole (10) to guide the condensate flowing down from the first water guide hole (10) to the right side of the secondary water receiving tray (8).

2. The portable air conditioner as described in claim 1, characterized in that, The water receiving tray assembly also includes a third-stage water receiving tray (12), which is located below the second-stage water receiving tray (8). The third-stage water receiving tray (12) has multiple second water guide holes (13) that penetrate the upper and lower surfaces of the third-stage water receiving tray (12). The first water guide hole (10) and the guide strip (11) on the second-stage water receiving tray (8) fall completely into the third-stage water receiving tray (12) in the vertical projection of the third-stage water receiving tray (12).

3. The portable air conditioner as described in claim 2, characterized in that, The upper surface of the three-stage water receiving tray (12) slopes downward from left to right, so that condensate can flow to the right side of the three-stage water receiving tray (12).

4. The portable air conditioner as described in claim 2, characterized in that, The lower surface of the three-stage water receiving tray (12) is provided with multiple first ribs (14) and multiple second ribs (15). A single first rib (14) extends in the front-back direction, and multiple first ribs (14) are arranged side by side at intervals in the left-right direction. A single second rib (15) extends in the left-right direction, and multiple second ribs (15) are arranged side by side at intervals in the front-back direction. The first ribs (14) and the second ribs (15) intersect to form multiple grids, and a second water guide hole (13) is provided in a single grid.

5. The portable air conditioner as described in claim 1, characterized in that, The first drain hole (7) is connected to a conduit (16) below, and the bottom end of the conduit (16) extends into the annular frame (9) of the secondary water receiving tray (8).

6. The portable air conditioner as described in claim 1, characterized in that, The upper surface of the secondary water receiving tray (8) inside the annular frame (9) is inclined downward from left to right, so that the condensate flows to the right.

7. The portable air conditioner as described in claim 1, characterized in that, The first water guide hole (10) is a strip-shaped hole.

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