Portable air conditioners and their upper air ducts

Abstract

We provide a portable air conditioner and its upper air duct. [Solution] This invention relates to a mobile air conditioner and its upper air duct, which include an upper volute unit (2) and a lower volute unit (3) installed within the air conditioner housing. The lower volute unit includes a lower volute and a second impeller installed within the lower volute. The lower volute is provided with a second inlet and a second outlet, and a condenser (52) is arranged along the air path of the second inlet. The upper volute unit includes an upper volute and a first impeller installed within the upper volute. The upper volute is provided with a first inlet and an upward-facing first outlet. One or more cool air outlets corresponding to the first outlets are installed at the top of the air conditioner housing, and an evaporator (51) is arranged along the air path of the first inlet. This configuration extends the air blowing distance and enables adjustment of the outlet direction, improving the user experience compared to conventional air conditioners. It also achieves high overall heat exchange efficiency and reduces energy consumption. Furthermore, the structure is compact, allowing it to be adapted to installation space restrictions.

Description

[Technical Field]

[0001] The present invention relates to an air conditioner, and more particularly to a portable air conditioner and its upper air duct. [Background technology]

[0002] A portable air conditioner is a combination of the indoor and outdoor units of a typical air conditioner, eliminating the need for an outdoor unit and requiring no specialized installation. It achieves localized cooling by utilizing the cooling function of the compressor and discharging hot air through an exhaust pipe. It has the advantages of being easy to move and simple to use.

[0003] However, the cool air outlet of conventional portable air conditioners is usually horizontal, and the cool air gradually descends along the airflow direction, resulting in a short airflow distance. When a user is at a certain distance from the portable air conditioner, the cool air mainly reaches the lower half of the body, and in some cases, the cool air does not reach the relevant area at all, resulting in a less than ideal user experience. In addition, due to the structural constraints of conventional portable air conditioners, the heat exchange efficiency of the heat exchanger is low, which affects the overall operating performance and effectiveness of the portable air conditioner. Summary of the Invention [Problem to be solved by the invention]

[0004] The technical problem to be solved by this invention is to provide a portable air conditioner and its upper air duct that has a compact structure, a long air flow distance, excellent directionality, high heat exchange efficiency, and good usability. [Means for solving the problem]

[0005] The present invention relates to an upper air duct for a portable air conditioner, which includes an upper volute unit 2 and a lower volute unit 3 installed inside an air conditioner housing 1, with the lower volute unit 3 located at the lower end of the upper volute unit 2.

[0006] The lower volute unit 3 includes a lower volute casing and a second impeller 33 provided in the lower volute casing, and the lower volute casing is provided with a second inlet 301 and a second outlet 302, and a condenser 52 is provided on the air flow path of the second inlet 301.

[0007] The upper volute unit 2 includes an upper volute casing and a first impeller 24 provided within the upper volute casing, and the upper volute casing is provided with a first air inlet 201 and a first air outlet 202, with the first air outlet 202 facing upward. One or more cool air outlets 102 corresponding to the first air outlet 202 are provided in the upper part of the air conditioner housing 1, and an evaporator 51 is provided on the air flow path of the first air inlet 201.

[0008] Furthermore, the cold air outlet 102 may be provided with a detachable air guide pipe for adjusting the air direction.

[0009] Furthermore, a partition plate is provided inside the air conditioner housing 1 to divide the air conditioner housing 1 into an upper compartment and a lower compartment, the first air passage and the evaporator 51 are provided in the upper compartment, the second air passage and the condenser are provided in the lower compartment, and a compressor 53 is provided in the lower compartment. The compressor 53 is located on the air flow path of the second air passage, and heat can be dissipated to the compressor.

[0010] Furthermore, the upper volute unit 2 includes an upper volute casing and a first impeller 24 provided within the upper volute casing, and a first air inlet 201 and a first air outlet 202 are provided on the side wall of the upper volute casing, the first air outlet 202 is arranged facing vertically upward, and the evaporator 51 is provided on the air flow path of the first air inlet 201.

[0011] The lower volute unit 3 includes a lower volute casing and a second impeller 33 provided in the lower volute casing, and a second inlet 301 and a second outlet 302 are provided in the side wall of the lower volute casing, the second inlet 301 is arranged facing downward, and the condenser 52 is provided on the air flow path of the second inlet 301.

[0012] Furthermore, an evaporator mounting portion 32a for mounting an evaporator 51 is provided at the top of the lower volute unit, and a water collection tank 320 is provided at the bottom of the evaporator mounting portion 32a, and within the water collection tank 320 are provided a second drain pipe 323 for discharging wastewater to the outside of the air conditioner housing 1 and a first drain pipe 322 for directing wastewater downward to cool the condenser.

[0013] Furthermore, the condenser 52 includes a first condenser plate 52a and a second condenser plate 52b arranged in parallel, the first condenser plate 52a being located on the outside, and a gap being provided between the first condenser plate 52a and the second condenser plate 52b, thereby forming a cooling section 520.

[0014] The cooling section 520 is provided at its lower end with a water collecting cavity and a water wheel 541 .

[0015] An upper condenser tube I (521) and a lower condenser tube I (522) are provided in the first condenser plate 52a, and an upper condenser tube II (523) and a lower condenser tube II (524) are provided in the second condenser plate 52b.

[0016] The output end of the compressor 53 is branched into two lines, which are connected to the inlet ends of the upper condenser pipe II (523) and the lower condenser pipe II (524), respectively.

[0017] The outlet end of the upper condenser pipe II (523) communicates with the inlet end of the upper condenser pipe I (521) to form a series connection, and the outlet end of the lower condenser pipe II (524) communicates with the inlet end of the lower condenser pipe I (522) to form a series connection.

[0018] The outlet ends of the upper condenser tube I (521) and the lower condenser tube I (522) are joined together and communicate with the inlet end of the evaporator via a capillary tube.

[0019] Furthermore, the number of layers of condenser tubes in the second condenser plate 52b is greater than the number of layers of condenser tubes in the first condenser plate 52a.

[0020] Furthermore, the thickness of the first condenser plate 52a is smaller than the thickness of the second condenser plate 52b.

[0021] Furthermore, the condenser tubes in the second condenser plate 52b are configured in at least two layers, and the condenser tubes provided in adjacent layers are arranged alternately.

[0022] Furthermore, a heat insulating layer is attached to the outer wall of the upper volute casing.

[0023] Furthermore, the lower volute casing is installed horizontally.

[0024] Furthermore, a positioning member for positioning the upper volute casing and a mounting hole for fixing the upper volute casing are provided on the upper part of the lower volute casing.

[0025] Furthermore, an upward wind window 101 for the wind from the upper volute unit and a downward wind window 103 for the wind from the lower volute unit are provided on the side wall of the air conditioner housing 1, and dustproof nets may be removably attached to the upward wind window 101 and the downward wind window 103, respectively.

[0026] Furthermore, the upper volute casing is composed of a first upper volute casing plate and a second upper volute casing plate arranged in parallel, and the edge of the first upper volute casing plate is bent back toward the first impeller to form an air guide section that can be connected to the evaporator.

[0027] The lower end of the air guide section is extended at an angle and extends into the evaporator mounting section 32a at the top of the lower volute unit, for discharging condensed water.

[0028] Furthermore, the lower volute casing includes a volute casing upper plate, and an evaporator mounting portion 32a for mounting an evaporator 51 is provided on the upper surface of the volute casing upper plate.

[0029] A waterproof ring is provided on the edge of the evaporator mounting portion 32a, and a support portion I (321) for contacting and supporting the bottom of the evaporator 51 is provided on the bottom surface of the evaporator mounting portion 32a.

[0030] Furthermore, supports for connecting and fixing the evaporator 51 are provided on both ends of the evaporator mounting portion 32a.

[0031] Furthermore, a water collection tank 320 is provided on the bottom surface of the evaporator mounting portion 32a, with a downwardly concave shape, for collecting condensed water within the evaporator mounting portion 32a, and a first drain pipe 322 extending downward and a second drain pipe 323 extending rearward are provided within the water collection tank 320.

[0032] The outlet end of the second drain pipe may optionally be capped.

[0033] Furthermore, the cold air outlet 102 may be provided with a dustproof net.

[0034] Furthermore, the support part I (321) includes a plurality of horizontally arranged rib-like protrusions, the top surfaces of which form the support surface, and there are gaps between adjacent rib-like protrusions, forming a flow passage, and the water collection tank 320 is located on the flow path of the flow passage.

[0035] Furthermore, the strip-like projection is linear, and its length direction is parallel to the length direction of the mounting portion.

[0036] Furthermore, the upper end of the first drain pipe 322 extends upward into the water collection tank 320 to form a water supply pipe 3221, the top of which functions as a water supply hole, or a water supply hole 3220 is provided on the side wall of the water supply pipe 3221, which serves as the water supply hole, and the water supply hole 3220 is located at a higher position than the bottom surface of the water collection tank 320.

[0037] Furthermore, the water supply hole of the second drain pipe 323 is located at the same level as or lower than the bottom surface of the water collection tank.

[0038] Furthermore, the second drain pipe 323 is arranged horizontally, and the side wall of the second drain pipe 323 is provided with one or more annular anti-skid grooves.

[0039] Furthermore, an upper spiral casing is provided on the lower bottom surface of the spiral casing upper plate, and a reinforcing rib is provided between the first drain pipe and the side wall of the upper spiral casing.

[0040] Furthermore, the edge of the spiral casing upper plate is bent upward to form a reinforcing part, and a waterproof strip is provided on the upper surface of the spiral casing upper plate, and both ends of the waterproof strip are connected to the reinforcing part to form an attachment part.

[0041] Furthermore, the bottom surface of the mounting portion is an inclined surface, which can guide condensed water into the water collection tank.

[0042] Furthermore, a base body 4 is provided at the bottom of the air conditioner housing 1, and the base body 4 includes a base body, and a partition plate is provided on the top surface of the base body, which divides it into the following sections: First mounting portion 4a: This is an area for mounting the condenser 52. A water collection cavity 410 is provided within first mounting portion 4a along the length of the condenser, and water collection cavity 410 divides first mounting portion 4a into two mounting portions 41. The upper surface of mounting portion 41 is inclined, allowing water to be guided into water collection cavity 410. A plurality of support portions II (411) are provided on the upper surface of mounting portion 41 to come into contact with the bottom of the condenser and provide support. Drainage holes 4100 are provided in the side walls of water collection cavity 410.

[0043] Second mounting section: An area for mounting the compressor 53 and the water-repellent motor 54, and the side wall of the second mounting section has an axial hole 413 through which the output shaft of the water-repellent motor passes and which connects the output shaft to the water turbine in the water collection cavity.

[0044] Overflow portion 4c: Communicates with the water collecting cavity via an overflow hole.

[0045] Furthermore, the support portion II is a strip-like support portion. Furthermore, the longitudinal direction of the strip support portion is inclined with respect to the longitudinal direction of the water collecting cavity.

[0046] Furthermore, the mounting portion is located higher than the overflow portion, and the bottom surface of the overflow hole is flush with the bottom surface of the overflow portion.

[0047] Furthermore, a baffle is provided at the outlet end of the overflow hole, and a gap is provided between the baffle and the outlet end of the overflow hole, thereby forming a filter passage.

[0048] Furthermore, an alarm mounting groove recessed downward for mounting a water level alarm is provided within the overflow section.

[0049] Furthermore, the water level alarm is a float valve. Furthermore, the second mounting portion includes a second mounting portion I for mounting a compressor and a second mounting portion II for mounting a water-repellent motor.

[0050] Furthermore, the bottom surface of the water collecting cavity is an inclined surface, the water collecting cavity defines a deep water area and a shallow water area, and the water turbine is provided in the deep water area.

[0051] Furthermore, mounting bases for attaching casters are provided at the four corners of the lower bottom surface of the base body, and the mounting bases are provided with positioning protrusions for positioning the casters and mounting holes for fixing the casters.

[0052] Furthermore, a hot air exhaust port 104 corresponding to the second air outlet 302 is provided on the side wall of the air conditioner housing 1, and a hot air guide duct may be removably attached to the hot air exhaust port 104, and a duct clamp for fixing the free end of the hot air guide duct may be removably attached to the side wall of the air conditioner housing 1.

[0053] Furthermore, the duct clamp is provided with a flexible fastening band for fastening and fixing the hot air guide duct, and both ends of the flexible fastening band are fixed by hook-and-loop fasteners.

[0054] Furthermore, the inner wall and / or outer wall of the upper volute casing may be provided with a heat insulating layer, or the upper volute casing may be made of a heat insulating material.

[0055] Furthermore, the insulating material is a foamed plastic. Furthermore, the upper volute unit 2 is composed of a first volute 23 and a second volute 25, and a first volute space is formed between the first volute 23 and the second volute 25. An air inlet hole is provided in the side wall of the first volute space, which functions as an air inlet end, and an air outlet is provided in the upper part of the first volute space, which functions as an air outlet end.

[0056] Furthermore, the partition plate is provided with a water collection area 2a located directly below the evaporator 51 and a drainage area 2b that is connected to the water collection area 2a and located directly above the condenser 52, and the bottom of the water collection area 2a is set higher than the bottom of the drainage area 2b so that water in the water collection area 2a can be guided to the drainage area 2b. The bottom of the drainage area 2b is provided with a plurality of drainage holes in a matrix arrangement or along the length of the condenser, and the drainage holes allow water to be drained and the condenser 52 to be cooled.

[0057] The present invention also provides a mobile air conditioner that uses the above-mentioned upper air duct structure.

[0058] Furthermore, as a beneficial effect, the upper air duct of the portable air conditioner and the portable air conditioner of the present invention adopt an upper air outlet structure, which greatly improves the blowing distance of the cool air, expands the effective working radius of the portable air conditioner, and exhibits excellent usability.

[0059] By providing an air guide pipe for adjusting the air direction at the end of the upper air outlet, the air outlet direction can be adjusted, allowing air to be blown at any angle, with a wide air blowing range, long distance, and easy adjustment, providing a good user experience.

[0060] By providing multiple air guide ducts independently, it is possible to adjust the blowing direction and angle, and it is possible to blow air to targets in different positions simultaneously, which is highly effective in use.

[0061] The assembly type configuration reduces manufacturing costs, simplifies assembly, improves structural precision, and ensures product quality.

[0062] By providing a heat insulating layer, it is possible to insulate the cold air outlet path, preventing the loss of cold air, reducing power consumption, and improving energy efficiency, while also providing soundproofing effects.

[0063] By providing a dustproof net, it is possible to prevent the intrusion of foreign matter, improve the reliability and stability of use, and extend the life of the product.

[0064] By providing a support structure, sufficient space for the condensed water to flow is provided, improving the flowability and collection efficiency of the condensed water.

[0065] The support structure uses strip-shaped protrusions, which have a large support area and high reliability, and the flow channels formed between adjacent protrusions provide good directionality for the flow of condensed water, further improving the flow and water collection efficiency.

[0066] The dual drainage pipe structure allows selective drainage, preventing excessive condensation and causing the device to shut down. It also enables continuous and stable operation even in high humidity environments, overcoming the limitations of conventional portable air conditioners and providing a better user experience.

[0067] The water supply hole of the first drain pipe is set higher than the bottom of the water collection tank, preventing clogging of the lower pipe due to the intrusion of granular foreign matter and improving the overall reliability and stability of use. In addition, due to the difference in height between the water supply hole of the second pipe, drainage of the second pipe takes priority over the first drain pipe, enabling the rapid discharge of condensed water in high-humidity environments and avoiding alarm shutdowns.

[0068] The provision of reinforcing ribs increases the structural strength of the first drainage pipe, preventing deformation and damage, while also contributing to quick assembly.

[0069] By providing multiple compartments in the base body, each part can be installed independently, making assembly easy and quick, preventing mutual interference, and increasing the overall structural strength of the base body, ensuring reliability and stability in use.

[0070] By providing a water collection cavity, it becomes possible to install a water turbine, and by water-cooling the condenser, the cooling efficiency of the condenser is improved, and the overall heat exchange efficiency is also increased, resulting in good usability.

[0071] By adopting an inclined surface on the upper surface of the mounting part, the cooling water scattered in the condenser is quickly diverted to the water collection cavity, realizing the collection of the cooling water and ensuring the cooling efficiency and effectiveness.

[0072] The support part adopts an inclined strip structure, which occupies a small space and has a long contact length with the condenser, thereby improving the installation reliability and stability of the condenser and preventing it from shaking.

[0073] The water collection cavity has a deep water area and a shallow water area, and by concentrating water in the deep water area, water repellency can be achieved even in situations where the amount of water is low, resulting in good usability.

[0074] The overflow hole allows for overflow when there is a large amount of water, preventing water from flowing into other areas and increasing safety and reliability in use.

[0075] The overflow hole is at the same height as the bottom of the overflow section, allowing the water in the overflow section to circulate back into the collection cavity, preventing unpleasant odors caused by water accumulating for long periods of time and providing a good user experience.

[0076] The baffle structure prevents large foreign objects from entering the overflow section.

[0077] By installing a water level alarm in the overflow area, it is possible to warn of the water level, improving safety and reliability of use, preventing excessive water levels from affecting other areas, and achieving safe and reliable use. [Effects of the Invention]

[0078] The upper air duct of the portable air conditioner of this invention has a compact structure, a long air distribution distance, and adjustable air distribution direction, providing a good user experience, high overall heat exchange efficiency, and low power consumption. [Brief explanation of the drawings]

[0079] [Figure 1] 1 is a schematic diagram showing the structure of the upper air duct of the portable air conditioner according to the present invention. [Figure 2]3 is a schematic structural view of the upper air duct of the portable air conditioner according to the present invention, viewed from another angle. [Figure 3] 1 is a cross-sectional view of the upper air duct of the portable air conditioner according to the present invention. [Figure 4] FIG. 4 is an enlarged view of part A in FIG. [Figure 5] 1 is a schematic diagram showing the internal structure of the upper air duct of the portable air conditioner according to the present invention. [Figure 6] 1 is a schematic diagram showing the arrangement of cooling pipes in the upper air duct of the portable air conditioner according to the present invention. [Figure 7] 1 is a schematic diagram showing the structure of the air flow component of the upper air duct of the portable air conditioner according to the present invention. [Figure 8] 8 is a view of the structure shown in FIG. 7 from another angle. [Figure 9] 1 is a schematic view showing the structure of the upper volute unit of the upper air duct of the portable air conditioner according to the present invention; [Figure 10] FIG. 10 is a cross-sectional view of FIG. [Figure 11] 1 is a cross-sectional view of a lower volute unit of an upper air duct of a portable air conditioner according to the present invention. [Figure 12] 1 is a schematic view showing the structure of the spiral upper plate of the upper air duct of the portable air conditioner according to the present invention. [Figure 13] 13 is an enlarged view of part B in FIG. 12. [Figure 14] 1 is a cross-sectional view of the water collection tank of the upper air duct of the portable air conditioner according to the present invention. [Figure 15] 1 is a cross-sectional view of the upper spiral plate of the upper air duct of the portable air conditioner according to the present invention. [Figure 16] FIG. 16 is an enlarged view of part C in FIG. [Figure 17] 1 is a schematic view showing the structure of the base body of the upper air duct of the portable air conditioner according to the present invention. [Figure 18] 18 is a schematic diagram showing the structure of FIG. 17 as viewed from a different angle. [Figure 19]19 is a partially enlarged view of the base body shown in FIG. 18. [Figure 20] 1 is a diagram showing the explosion structure of the upper volute unit of the upper air duct of the portable air conditioner according to the present invention. [Figure 21] 1 is a schematic view showing the structure of the support plate of the upper air duct of the portable air conditioner according to the present invention. [Figure 22] 1 is a schematic diagram showing the structure of the first spiral of the upper air duct of the portable air conditioner according to the present invention. [Figure 23] 1 is a schematic diagram showing the structure of the second spiral of the upper air duct of the portable air conditioner according to the present invention. [Figure 24] 24 is a view of the structure shown in FIG. 23 from another angle. [Figure 25] 1 is a schematic view showing the structure of the air outlet and inlet of the upper air duct of the portable air conditioner according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0080] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Referring to Figures 1 to 19, the present invention provides an upper air duct for a portable air conditioner, which includes an air conditioner housing 1, and a first air passage and a second air passage are formed inside the air conditioner housing 1.

[0081] The first air passage is located above the second air passage, and is provided within the first air passage with upper spiral unit 2 and evaporator 51. The outlet end of the first air passage is provided at the top of air conditioner housing 1, and is provided within the second air passage with lower spiral unit 3 and condenser 52.

[0082] The upper volute unit 2 and the lower volute unit 3 function as airflow components, forming an airflow to generate wind. The evaporator 51 and the condenser 52 are arranged in the same heat exchange system, and a compressor 53 is connected between them. The compressor compresses the internal medium and provides power to drive the circulation of the medium.

[0083] A partition plate is installed inside the air conditioner housing 1, dividing the interior of the air conditioner housing 1 into an upper chamber and a lower chamber. The first air duct and evaporator 51 are installed in the upper chamber, and the second air duct and condenser are installed in the lower chamber. The compressor 53 is also installed in the lower chamber and is located on the air flow path of the second air duct, allowing the compressor to be cooled, ensuring continuous and highly efficient operation of the system, increasing operational reliability and stability, and improving overall operational efficiency and effectiveness.

[0084] The upper volute unit 2 includes an upper volute and a first impeller 24 provided therein, and the lower volute unit includes a lower volute and a second impeller 33 provided therein.

[0085] Each component will be described in detail below with reference to the drawings: 3, 5, and 7 to 11, upper volute unit 2 is used to blow cool air and includes an upper volute and a first impeller 24 provided therein. The upper volute is located within an upper chamber, forming a chamber therein, and first impeller 24 is a centrifugal impeller that is rotatably mounted within the chamber, thereby forming an air passage.

[0086] A first drive motor is provided on the side wall of the upper volute, and the output end of the first drive motor is connected to the first impeller 24, causing the first impeller 24 to rotate, creating a pressure difference and forming an airflow (i.e., wind).

[0087] The side wall of the upper spiral is provided with a first inlet 201 and a first outlet 202. In this embodiment, the first outlet 202 faces upward, preferably vertically upward. In this case, the axis of the first impeller 24 is horizontal.

[0088] In addition, a cold air outlet 102 corresponding to the first air outlet 202 is provided at the top of the air conditioner housing 1, and this cold air outlet 102 is made up of one or more cold air outlets 102, preferably two, and is capable of discharging cold air from the first air outlet 202.

[0089] By arranging the first air outlet 202 facing upward, the air blowing distance can be significantly improved, the cool air blowing distance is longer, the effective working radius is greatly expanded, and a good user experience is provided.

[0090] In the present application, a wind direction adjustment structure is provided between two adjacent cold air outlets 102, and the structure is an inclined guide surface formed in a V-shape and placed between two adjacent cold air outlets (bottom ends), which contributes to guiding the airflow and significantly reducing wind noise.

[0091] In this embodiment, the inclined guide surface has an outwardly convex arc-shaped surface structure, which can further reduce wind resistance and wind noise.

[0092] At the same time, the cold air outlet 102 is provided with an air guide pipe, which is detachably attached to the cold air outlet 102 with a click-fit structure, allowing for quick attachment and detachment.

[0093] The air guide duct is attached vertically to the top of the air conditioner housing and is extendable and bendable, allowing the airflow direction to be adjusted to any direction and angle, making it possible to meet a variety of usage needs.

[0094] The air guide duct is fixed to the top of the housing, can be adjusted to any angle, and is highly stable.

[0095] Each cool air outlet 102 is provided with an independent air guide pipe, allowing multiple people to use it at the same time, forming different cool air blowing directions, providing a good user experience, and allowing multiple uses to be realized with one device.

[0096] Since the size of a portable air conditioner is relatively small, it is preferable to have two to three cool air outlets 102, so that each cool air outlet has sufficient air pressure and the air blowing distance is guaranteed.

[0097] In addition, in the present application, the cold air outlet is positioned vertically upward, which presents a problem of making it easy for foreign matter to get in. For this reason, in this embodiment, a dustproof net is provided at the cold air outlet 102 to prevent the intrusion of large particles of foreign matter, thereby improving safety and reliability of use and extending the product life.

[0098] An evaporator 51 is provided on the airflow path of the first air inlet 201, and the evaporator 51 performs heat exchange cooling on the airflow passing through it, and functions as a heat exchanger.

[0099] In this embodiment, the upper volute is composed of first and second upper volute plates arranged in parallel. Both upper volute plates are installed vertically, with the volute body attached to the side wall of the first upper volute plate and the second upper volute plate attached to its end to form an upper volute chamber. A first air outlet 202 is installed at the top of the volute, and a first drive motor is fixed to the side wall of the second upper volute plate.

[0100] The first upper volute plate has an opening that forms the first air inlet 201, and its edge is bent outward to form an air guide area, specifically, it is bent away from the first impeller 24, so that it can be connected to the evaporator and sufficiently take in cooled air.

[0101] The lower end of the air guide section is inclined and extends to the evaporator mounting portion 32a of the lower volute unit, to guide and drain the condensed water.

[0102] The inner or outer wall of the air guide section is covered with a heat insulating layer, and the outer wall of the volute is also covered with a heat insulating layer, which provides heat insulation, prevents loss, reduces noise, and prevents condensation from forming on the side walls of the volute, improving the efficiency of use.

[0103] The lower volute unit 3 is used for exhaust heat ventilation and is installed in the lower chamber. It includes a lower volute and a second impeller 33 installed therein. The lower volute defines a chamber, and the second impeller 33 is a centrifugal impeller that is rotatably mounted within the chamber to form an air passage. A second drive motor is installed above the lower volute, and its output terminal is connected to the second impeller 33.

[0104] The side wall of the lower volute is provided with a second inlet 301 and a second outlet 302, with the second inlet 301 facing downward. A condenser is provided on the airflow path, specifically below the lower volute unit, and is cooled by air.

[0105] The condenser and the evaporator are arranged in the same heat exchange circuit and constitute a complete heat exchange system.

[0106] The compressor is located between the condenser and the lower volute unit, and the generated airflow cools the compressor. The compressor is relatively hot, and the air preheated by the condenser can more quickly remove heat from the compressor, achieving rapid cooling.

[0107] A water collection tank 320 is provided at the bottom of evaporator mounting portion 32a at the edge of lower volute unit 3. A second drain pipe 323 and a first drain pipe 322 are provided in the water collection tank, and the second drain pipe discharges water to the outside of the air conditioner housing, while the first drain pipe 322 discharges water downward to be used for cooling the condenser.

[0108] Furthermore, in this embodiment, the lower swirl is formed by connecting a first lower swirl plate 32 and a second lower swirl plate 34 that are parallel to each other, with the first lower swirl plate 32 being the upper swirl plate and the second lower swirl plate 34 being the lower swirl plate.

[0109] The first lower vortex plate forms a partition plate, dividing the air conditioner housing into an upper and lower compartment. The first lower vortex plate and the second lower vortex plate 34 are both horizontally oriented. The first lower vortex plate has a first half-shell on its underside, and the second lower vortex plate 34 has a second half-shell on its upper surface. Together, these form a full-width lower vortex. The axis of this lower vortex is perpendicular to the horizontal plane.

[0110] A hole is provided in the side wall of the lower spiral, thereby forming a second outlet 302. A hole is also provided in the second lower spiral plate 34, thereby forming a second inlet 301. The second inlet 301 is provided facing vertically downward.

[0111] A plurality of locating features are provided between the first and second lower spiral plates 34, including coaxially arranged locating sleeves and locating posts, which allow mating connection and positioning.

[0112] Furthermore, a drain pipe is installed at the bottom of the water collection tank, and a water supply pipe is installed coaxially with the drain pipe in the second lower volute plate. The drain pipe is fitted into the water supply pipe to convey water and also serves as a positioning function.

[0113] The side wall of the air conditioner housing 1 is provided with an upward air window 101 and a downward air window 103. The upward air window 101 communicates with the first air inlet 201 and is used for air flow in an upper spiral configuration, while the downward air window 103 communicates with the second air inlet and is used for air flow in a lower spiral configuration. Both the upward air window 101 and the downward air window 103 are provided with a detachable dustproof net to prevent dust from entering and to increase reliability and stability in use.

[0114] In addition, a hot air exhaust port 104 for exhausting heat is provided on the side wall of the air conditioner housing 1, and a detachable air guide pipe is provided on the hot air exhaust port 104 with a clip. This air guide pipe is used to guide the hot air away or outdoors, and prevents the hot air from flowing directly into the first air inlet 201 and affecting the cooling effect.

[0115] Furthermore, detachable air duct cuffs 7 are provided at the upper end of the side wall of the air conditioner housing 1, and these air duct cuffs 7 are used to secure the free ends (unfixed ends) of the air guide ducts. As shown in Figures 1 and 2, the air duct cuffs are provided with flexible bands that tightly fasten and secure the air guide ducts. Both ends of this flexible band are secured with Velcro, which prevents the air guide ducts from becoming disorganized even when the equipment is stopped, and keeps them neat and tidy.

[0116] For the condensate drainage structure, see Figures 12 to 16. This drainage structure is provided on the lower swirl plate 32, which is a rectangular plate structure arranged horizontally as a whole. An evaporator mounting portion 32a is provided on the upper surface of the lower swirl plate 32, and the evaporator mounting portion 32a is located near one edge of the lower swirl plate 32 and is used to mount an evaporator.

[0117] A water return ring is provided on the edge of the evaporator mounting portion 32a to prevent condensed water generated by the evaporator from leaking out. In this embodiment, the edge of the lower swirl plate 32 is bent upward by 90 degrees to form a reinforcement portion. In addition, a water return bar 325 is provided on the upper surface of the lower swirl plate 32, and both ends of the water return bar 325 are connected to the reinforcement portion.

[0118] A mounting portion is formed between the water return bar 325 and the reinforcing portion, and the water return bar 325 and the reinforcing portion form a water return structure, i.e., a water return ring. A support portion I321 is provided on the underside of the evaporator mounting portion 32a, and the support portion I321 comes into contact with the bottom surface of the evaporator to support the evaporator.

[0119] Support seats 324 are provided on both ends of the evaporator mounting portion 32a, and the support seats 324 are used to connect to the evaporator and fix the evaporator in place. Mounting holes are provided in the support seats 324, and the evaporator is fixedly connected to them via bolts.

[0120] The lower surface of the evaporator mounting portion 32a is provided with a groove structure recessed downward, forming a water collection tank 320. The water collection tank 320 is for allowing condensed water inside the evaporator mounting portion 32a to flow in and collect the water.

[0121] A first drain pipe 322 and a second drain pipe 323 are provided in the water collection tank 320. The first drain pipe 322 extends vertically downward and is connected to a pipe on the lower volute plate, thereby discharging condensed water in the water collection tank 320 (evaporator mounting portion 32a) downward and using it to cool the condenser. This allows water to be drained. The first drain pipe is a rigid pipe and is formed integrally with the lower volute plate 32 by injection molding.

[0122] The second drain pipe 323 extends rearward, preferably horizontally. When used in a high humidity environment, water can be drained through the second drain pipe, preventing water from accumulating at the bottom end due to excessive downward drainage and preventing shutdown due to an alarm.

[0123] A plug 3231 or a drain hose can be selectively attached to the outlet end of the second drain pipe 323, and it can be selected whether to attach it or not depending on usage needs. When the plug is attached, condensed water is discharged from the first drain pipe, and when the plug is not attached, condensed water is preferentially discharged from the second drain pipe. This prevents excess condensed water from flowing into the bottom of the air conditioner through the first drain pipe, allowing the mobile air conditioner to operate continuously and stably even in high humidity environments, improving environmental adaptability and avoiding the problem of frequent alarm shutdowns in high humidity environments. It is flexible to use and has a wide range of applications.

[0124] In the present application, the support portion I321 includes a plurality of horizontally arranged strip-shaped protrusions, the upper surfaces of which form a support surface and are used to support the evaporator. Preferably, the strip-shaped protrusions are linear, arranged in parallel to one another, and the longitudinal direction of each strip-shaped protrusion is parallel to the longitudinal direction of the evaporator mounting portion 32a. A gap is formed between adjacent strip-shaped protrusions to form a flow passage.

[0125] The water collection tank 320 is located on the flow path of the vortex passage, so that the condensed water is guided by the vortex passage and can quickly flow into the water collection tank 320 .

[0126] To improve water conduction efficiency and effectiveness, the lower surface of the evaporator mounting portion 32a in this embodiment is inclined, allowing condensed water to be guided to the water collection tank. Because the lower swirl plate 32 has a plate-like structure arranged horizontally overall, the inclination angle is small, preferably 0.5 to 1°, allowing all condensed water in the evaporator mounting portion 32a to be collected in the water collection tank.

[0127] The upper end of the first drain pipe 322 extends upward and reaches the inside of the water collection tank 320, thereby forming the water supply pipe 3221. The top of the water supply pipe 3221 functions as a water supply hole. Alternatively, a water supply hole 3220 is provided on the side wall of the water supply pipe 3221, in which case the water supply hole 3220 functions as the water supply hole. Whether the water supply hole is at the top or the water supply hole 3220 is also a water supply hole, the height of the water supply hole is higher than the bottom of the water collection tank 320, thereby creating a height difference. In other words, the water supply hole is located above the bottom of the water collection tank 320, and because there is a certain height difference between the bottom of the water supply hole and the bottom of the water collection tank, water at that position is not discharged from the first drain pipe.

[0128] This configuration prevents foreign particles accumulated in the lower part of the water collection tank from entering the first drain pipe, preventing foreign particles from entering the lower cooling area and causing clogging, improving stability and reliability during use. Only when the water level in the water collection tank reaches the same level as or higher than the water supply hole does water begin to flow into the first drain pipe.

[0129] The second drain pipe 323 is installed horizontally, and its water inlet is at a position equal to or lower than the bottom of the water collection tank 320. When the second drain pipe 323 is open, it can discharge foreign particles present at the bottom of the water collection tank. Furthermore, because the water inlet holes of the first and second drain pipes are at different heights, the second drain pipe 323 has priority over the first drain pipe in draining water. This allows condensed water to be discharged outside the air conditioner even in high-humidity environments, preventing excessive condensed water from flowing into the bottom of the portable air conditioner and avoiding shutdown due to an alarm.

[0130] In use, an external hose is connected to the second drain pipe. To improve the reliability of the connection, one or more annular anti-slip grooves are provided on the side wall of the second drain pipe 323. The cross-sectional shape of the anti-slip grooves is triangular, which makes it easier to insert the hose inward and provides an anti-slip effect to prevent the hose from slipping outward and falling off.

[0131] An upper spiral body is provided on the underside of the lower spiral plate 32, and a reinforcing rib is provided between the first drain pipe 322 and the side wall of the upper spiral body. The reinforcing rib has a plate-like structure, with both sides connected to the upper spiral body and the side wall of the first drain pipe, respectively, and its upper part connected to the underside of the lower spiral plate 32. This improves the structural strength of the first drain pipe 322 and prevents deflection and breakage.

[0132] During assembly, the end of the first drain pipe 322 can be fitted into a pipe provided on the second lower spiral plate, allowing condensed water to be discharged to the lower water-drop cooling area, ultimately cooling the condenser.

[0133] In this application, the water collection tank 320 is provided at the end of the evaporator mounting portion 32a, and the middle position is used as an air outlet for the volute. The water collection tank 320 has a first side wall and a second side wall. The first side wall is located away from the end and has a large amount of condensed water on that side. The first side wall is an inclined surface with an inclination angle of 30 to 60 degrees. The second side wall is located closer to the end and is arranged opposite the first side wall. The inclination angle of the second side wall 10b is smaller, and in this embodiment, the second side wall is a vertical surface. The lower end of the second side wall is connected to the bottom of the water collection tank 320 via a circular arc surface.

[0134] A portion of the water supply pipe is located on the first side wall, and the water supply hole 3220 is provided on the opposite side from the first side wall, preventing condensed water from directly entering the water supply hole.

[0135] For the base structure, specifically the mounting structure for the condenser and compressor, please refer to Figures 17 to 19. The structure includes a base body 4, which has an overall rectangular shape and is integrally molded by injection molding. The edges of the base body 4 are bent upward by 90 degrees to form side panels.

[0136] A plurality of partition walls are provided on the base body 4. The partition walls are strip-shaped partition walls that divide the upper surface of the base body 4 into a first mounting section 4a, a second mounting section, and an overflow section 4c. Each section is independent of the others, does not communicate with each other, and has a waterproof function.

[0137] Of these, the first mounting portion 4a is used to mount the condenser 52. The first mounting portion 4a is rectangular and provided on one edge of the base body 4. A downwardly recessed water collection cavity 410 is provided within the first mounting portion 4a, and the water collection cavity 410 is strip-shaped, with its longitudinal direction parallel to the longitudinal direction of the condenser, i.e., the longitudinal direction of the first mounting portion 4a.

[0138] The water collecting cavity 410 divides the first mounting portion 4a into two mounting portions 41, and the upper surfaces of the two mounting portions 41 are inclined surfaces that slope downward toward the water collecting cavity. This slope allows the cooling water that has splashed into the condenser to be guided and collected into the water collecting cavity 410. The angle between the inclination angle of the slope and the horizontal plane is 3 to 5 degrees.

[0139] A plurality of support portions II411 are provided on the upper surface of the mounting portion 41, and these support portions II411 are in contact with and support the bottom of the condenser. In this embodiment, the support portions II411 are strip-shaped support portions, and a plurality of support portions II411 are provided and arranged sequentially along the longitudinal direction of the water collecting cavity, preferably at equal intervals. The upper surface of each support portion is flat, forming a support surface that contacts the bottom of the condenser.

[0140] A gap is provided between the support surface and the inclined surface to ensure space for water to flow back. The longitudinal direction of the band-shaped support part is inclined relative to the longitudinal direction of the water collection cavity 410, which increases the contact length (width) of the condenser and improves the installation reliability and stability of the condenser.

[0141] A water wheel 541 is installed in the water collection cavity, and the rotation of the water wheel 541 splashes the water in the water collection cavity onto the side wall of the condenser, thereby realizing water cooling of the condenser. The cooling water then flows downward along the side wall of the condenser, reaches the upper surface of the mounting part, and flows back into the water collection cavity through the inclined upper surface, realizing circulation.

[0142] The side wall of the first mounting portion, specifically the end of the first mounting portion, is provided with a mounting hole, which is used to fix the condenser with a screw. The side wall of the water collecting cavity 410 is provided with a drain hole 4100, which is provided with a plug for draining water as needed.

[0143] In the present application, the bottom surface of the water collecting cavity 410 is an inclined surface, and the inclined surface is inclined along the longitudinal direction of the water collecting cavity, so that the water collecting cavity 410 forms a deep water area and a shallow water area. The deep water area is relatively deep, and the shallow water area is relatively small. A drain hole is provided in the deep water area.

[0144] The second mounting portion is used to mount the compressor 53 and the water-repellent motor 54. A shaft hole 413 is provided in the side wall of the second mounting portion, through which the output shaft of the water-repellent motor 54 passes, and further to connect with the water turbine 541 in the deep water area to drive the water turbine.

[0145] In this embodiment, the second mounting portion includes second mounting portion I4b and second mounting portion II4d, and second mounting portion I4b is used to mount the compressor 53. Second mounting portion I4b is triangular and is designed to fit the base body of the compressor. Second mounting portion II4d is used to mount the water-repellent motor 54, and second mounting portion II4d is located adjacent to the first mounting portion. A shaft hole 413 is provided in the side wall of second mounting portion II4d and passes through and communicates with the water collection cavity.

[0146] A gap is provided between the side wall of the second mounting portion II4d and the side wall of the first mounting portion. A mounting post 441 for mounting the water-repellent motor is provided inside the second mounting portion II4d, and a mounting hole is formed at the upper end of the mounting post.

[0147] The overflow section 4c is for receiving water overflowing from the water collection cavity and acts as an overflow buffer when the amount of water in the water collection cavity is excessive. The overflow section is connected to the water collection cavity 410 via an overflow hole 412. The overflow hole 412 is located at the lower end of the axial hole 413, ensuring stable overflow. The overflow hole has a groove-like structure with a large cross-sectional area, and the drainage volume (drainage area) is set larger than the water supply volume (water supply area) of condensed water from above. This ensures stable and reliable overflow.

[0148] In order to reduce the overall thickness of the base body and increase compactness, in this embodiment, the mounting portion 41 is configured to be higher than the overflow portion. That is, the upper surface of the first mounting portion (excluding the water collection cavity) is higher than the upper surface of the overflow portion, and the first mounting portion protrudes upward while the water collection cavity is recessed downward.

[0149] Overflow hole 412 passes through one of the mounting parts 41 and communicates with the overflow part, and the bottom surface of overflow hole 412 is located at the same height as the bottom surface of the overflow part. Therefore, water in the overflow part can flow back into the water collection cavity through the overflow hole, preventing water from stagnating in the overflow part for a long period of time and causing an unpleasant odor, and allowing for hygienic and clean use.

[0150] In this embodiment, the overflow hole is located at one end of the shallow water area. To prevent foreign matter from entering the overflow section, a shielding plate 432 is installed at the outlet end of the overflow hole 412. The shielding plate is installed perpendicular to the bottom surface of the overflow section, and a gap is formed between the shielding plate 432 and the outlet end of the overflow hole 412. This gap functions as a filter passage, filtering out relatively large foreign matter and preventing debris from accumulating in the overflow section, thereby improving safety during use.

[0151] An alarm mounting groove 430 is provided in the overflow section 4c, and this alarm mounting groove 430 is a circular recess that is recessed downward. Alarm mounting posts 431 are provided on both sides of the circular recess, and are used to fix a water level alarm 56. In this application, the water level alarm is a float valve.

[0152] In this embodiment, reinforcing ribs are provided on the upper or lower bottom surface of the base body, which can increase the overall structural strength and improve the supporting force, thereby ensuring the overall reliability and stability of the portable air conditioner.

[0153] For details of the condenser 52, please refer to Figures 4 and 6. The condenser 52 is used to cool (dissipate heat) the medium in the heat exchange system and is mounted in the first mounting portion 4a of the base. The condenser has a first condenser plate 52a and a second condenser plate 52b arranged in parallel, with the first condenser plate 52a located on the outside and the second condenser plate 52b located on the inside. The side walls of both plates are connected by a plate body to form an integrated structure. A gap is provided between the first condenser plate 52a and the second condenser plate 52b, forming a cooling portion 520. The cooling portion 520 is aligned with the water collection cavity.

[0154] The first condenser plate 52a and the second condenser plate 52b are disposed on supports provided on both sides of the water collecting cavity. The first condenser plate 52a is provided with an upper condenser tube I521 and a lower condenser tube I522, and the second condenser plate 52b is provided with an upper condenser tube II523 and a lower condenser tube II524.

[0155] The output end of the compressor 53 is branched into two systems, which are connected to the inlet ends of the upper condenser tube II 523 and the lower condenser tube II 524, respectively, for introducing high-temperature and high-pressure medium. The outlet end of the upper condenser tube II 523 is connected to the inlet end of the upper condenser tube I 521 in series, and the outlet end of the lower condenser tube II 524 is connected to the inlet end of the lower condenser tube I 522 in series. The outlet ends of the upper condenser tube I 521 and the lower condenser tube I 522 merge into one system, which is connected to the inlet end of the evaporator via a capillary tube.

[0156] The diameter of the capillary tube is smaller than the diameter of the evaporation tube in the evaporator, and in this application, the inner diameter ratio is set to 1 / 3 to 1 / 8. The moment the medium in the capillary tube flows into the evaporation tube, its volume suddenly expands and heat is rapidly absorbed. This eliminates the need for a separate expansion valve, significantly reducing manufacturing costs.

[0157] In the present application, the high-temperature, high-pressure medium discharged from the compressor first passes through the second condenser plate 52b and then passes through the first condenser plate 52a, thereby achieving better heat dissipation performance.

[0158] In the present application, the number of layers of condenser tubes in the second condenser plate 52b is greater than the number of layers of condenser tubes in the first condenser plate 52a. In this embodiment, the condenser tubes in the first condenser plate 52a have a single layer structure, and the single layer of condenser tubes arranged in the vertical direction are bent back and forth in the horizontal direction to form a wavy shape.

[0159] On the other hand, the condenser tubes in the second condenser plate 52b have a three-layer structure, with the tubes arranged horizontally and bent back and forth to form a wavy shape. With this configuration, external air first passes through the first condenser plate to be preheated, and then passes through the second condenser plate to absorb heat secondarily. The preheated warm air can absorb heat more efficiently, allowing it to absorb more heat from the condenser, resulting in a higher outlet temperature and effectively dissipating heat from the condenser.

[0160] Its heat absorption efficiency and effectiveness are significantly superior to those of a single-layer condenser plate structure. In addition, in the present application, two adjacent layers of condenser tubes in the second condenser plate 52b are offset from each other, creating a difference in height (a step). This improves the uniformity of heat distribution within the second condenser plate, further enhancing the heat dissipation efficiency and effectiveness.

[0161] Furthermore, a compressor is provided on the rear path of the condenser, realizing rapid heat dissipation to the compressor.

[0162] In the present application, an ultrasonic atomizer is provided in the water collection cavity, and the water in the water collection cavity is atomized by the ultrasonic atomizer, and the atomized water fills the space between first condenser plate 52a and second condenser plate 52b. This significantly increases the contact area with the condenser, and the heat on first condenser plate 52a and second condenser plate 52b can be quickly absorbed and transported by the airflow.

[0163] Furthermore, the provision of a sprayer can significantly improve the humidity of the gas in the area. The hot air passing through the first condenser plate 52a can further improve its heat absorption efficiency. That is, compared to cold air or normal hot air, hot air absorbs the heat in the area more efficiently and promotes atomization, thereby improving the heat dissipation and cooling efficiency and effectiveness of the condenser.

[0164] A storage tray 105 for placing items is provided on the top surface of the air conditioner housing. The storage tray 105 is rectangular and has two storage areas inside. One is rectangular and has multiple strip-shaped protrusions, i.e., anti-slip grooves, on its bottom surface, and is used to place items such as smartphones. The other storage area is circular and is used to place items such as cups and beverage bottles.

[0165] In order to improve the heat insulating effect, in the present application, a heat insulating layer may be provided on the inner wall surface of the upper spiral body, on the outer wall surface of the upper spiral body, or on both the inner and outer wall surfaces of the upper spiral body, or the entire upper spiral body may be made of a heat insulating material.

[0166] In this embodiment, an example will be described in which the entire upper scroll is made of a heat insulating material.

[0167] See Figures 20 to 25. The upper scroll unit is made of a heat insulating material, which is a foamed plastic. Foamed plastic is a polymeric material composed of a large number of air bubbles dispersed in a solid plastic. It has properties such as light weight, heat insulation, soundproofing, and shock absorption, and satisfies the design concepts of heat insulation, noise reduction, and weight reduction in this application, reducing energy consumption, reducing operating noise (wind noise), and reducing the overall weight.

[0168] In this embodiment, the foam plastic is expanded polystyrene (EPS), which has waterproof and moisture-proof properties and can prevent the formation of water droplets due to condensation of air, which can lead to the growth of mold.

[0169] In the present application, the density of the polystyrene foam is 35 kg to 45 kg / m 3 and has high hardness, which allows for good connection and support and increases the strength of the entire structure.

[0170] By forming the spiral body from foam plastic, it is possible to reduce manufacturing costs. Aluminum molds can be used for the molds, which not only keep mold costs low but also make them recyclable, significantly reducing manufacturing costs.

[0171] Furthermore, unlike the plastic or metal plates used in the prior art, no impact noise occurs due to gaps during assembly, and the operating noise can be significantly reduced, improving comfort during use.

[0172] Furthermore, by using the above materials, the thickness of the spiral body can be increased appropriately, which further improves the structural strength and effectively reduces noise during operation, has heat and sound insulation effects, is lightweight, and is easy to assemble.

[0173] In this application, a support plate 22 is fixed in the upper space using screws. The support plate 22 is made of a metal or plastic plate and is used to attach and secure the upper scroll unit. The support plate 22 has an overall rectangular structure, and its edges are bent 90 degrees in the same direction to form attachment portions I221, which are fixedly connected to the inner wall of the housing and the horizontal partition wall.

[0174] The upper scroll unit 2 is fixed on a support plate 22, and a first drive motor 21 is fixed on the support plate 22. A hole 220 is formed in the support plate 22 for passing the first drive motor body or its output shaft therethrough.

[0175] In order to increase the strength of the attachment and connection and prevent the influence of moment (arm of force), in this application, the first drive motor is a fan motor, and its attachment position is located at the center of the motor, so that no moment is generated after connecting with the support plate 22, the attachment is reliable and stable, and no torsional force is applied to the support plate.

[0176] The output shaft of the first drive motor 21 is connected to a first impeller 24, which is located in the upper volute unit 2, and can generate an airflow.

[0177] In the present application, the upper volute unit 2 is made of foamed plastic, and to facilitate processing and manufacturing, as well as assembly in later steps, particularly installation of the first impeller, the upper volute unit 2 is composed of a first volute 23 and a second volute 25. A volute chamber (vortex cavity) is formed between the first volute 23 and the second volute 25, and an air inlet hole 250 is formed at the end of the volute chamber, which functions as an air inlet end and faces the first air inlet port. An exhaust hole is formed at the top of the volute chamber, which functions as an exhaust end and faces the first air outlet port.

[0178] To facilitate quick positioning and assembly, a first positioning structure for positioning is provided between the first spiral body 23 and the second spiral body 25, and the first positioning structure is composed of a positioning groove and a positioning protrusion.

[0179] More specifically, the first volute 23 includes a first plate 23a and a first arc-shaped half shell 23b disposed on the first plate 23a. The first plate 23a has a central hole 230 through which the drive motor or drive shaft of the first impeller can pass.

[0180] The first plate 23a has a plurality of lugs on its edge, each of which has a first mounting hole 222 formed therein, through which the first plate 23a is fixedly connected to the support plate 22. The end surface of the first arc-shaped half-shell 23b is flat, forming a first mounting surface. A plurality of first positioning grooves 233 are formed on the outside of the first mounting surface, and the first positioning grooves 233 are arranged sequentially along the contour of the first arc-shaped half-shell 23b. The first spiral body is molded in one piece.

[0181] The second volute 25 includes a second plate 25a and a second arc-shaped half-shell 25b mounted on the second plate 25a. The second plate 25a is disposed parallel to the first plate 23a, and holes are formed in the second plate 25a, which form the air advance holes 250. The end surface of the second arc-shaped half-shell 25b is flat and forms a second mounting surface that can be in close contact with the first mounting surface, thereby forming a complete volute chamber.

[0182] The second mounting surface is provided on its outer side with a first positioning protrusion 253, which corresponds to the first positioning groove 233 and can be engaged with each other to form a complete spiral chamber structure. The first and second spiral bodies can be fixedly connected with each other using adhesive or adhesive tape.

[0183] The second plate 25a is rectangular, and its edge is bent outward, i.e., in the direction opposite to the volute chamber, by 90 degrees to form an airflow guide port 254. The airflow guide port 254 can be connected to the evaporator.

[0184] Furthermore, the upper edge of the airflow guide port 254 extends toward the evaporator to form a shielding portion, which covers the upper end of the evaporator, enhancing the airflow guide effect, preventing wind leakage, improving cooling performance, and effectively reducing wind noise.

[0185] In the present application, the upper volute unit 2 further includes an exhaust air guide port 26, which has the same shape as the exhaust hole, is attached closely to the upper part of the first volute, is aligned with the exhaust hole, and its upper end is connected to the first exhaust port on the top surface of the housing, and discharges the air by guiding it to the first exhaust port.

[0186] This configuration can reduce or prevent wind leakage, improve exhaust wind pressure, increase exhaust distance, effectively reduce wind noise, and improve the usage effect.

[0187] The exhaust air guide port 26 is attached in close contact with the exhaust hole, and a second positioning structure is provided between the contact surfaces of the first and second spirals. The second positioning structure includes a second positioning groove I 2310 provided at the top of the first spiral, a second positioning groove II 2510 provided at the top of the second spiral, and a second positioning protrusion 261 provided at the bottom of the exhaust air guide port.

[0188] The second positioning protrusions 261 correspond to the second positioning grooves I 2310 and II 2510, respectively, and can be inserted into these grooves, thereby realizing positioning.

[0189] In the present application, the exhaust air guide port 26 is fixed to the upper surface of the first volute and the upper surface of the second volute using adhesive or adhesive tape.

[0190] The upper air duct of the portable air conditioner of this invention adopts an upper blowing structure, which greatly improves the blowing distance of cool air and increases the effective working radius of the portable air conditioner, resulting in good usability.

[0191] The upper outlet is equipped with an air duct, allowing the airflow direction to be adjusted, allowing for airflow at any angle. It offers a wide airflow range, long airflow distance, and easy adjustment, providing a superior user experience. Multiple independent air ducts allow for adjustment of different airflow directions and angles, allowing for simultaneous airflow to targets in different positions, resulting in excellent usability.

[0192] The adoption of an assembled structure reduces production costs, simplifies assembly, effectively improves structural precision, and ensures product quality. The insulation layer insulates the cooling air duct, preventing the loss of cooling air, reducing power consumption, improving energy efficiency, and providing sound insulation.

[0193] The dustproof net prevents foreign objects from entering, improving reliability and stability during use and extending the service life. The support structure provides sufficient space for condensate to flow, improving the flow rate and collection efficiency of condensate.

[0194] The support structure is made up of strip-shaped ridges, which provide a wide support area and high reliability. In addition, vortex channels are formed between adjacent ridges, which clearly directs the flow of condensate, improving flow and collection efficiency.

[0195] The dual drainage pipe structure allows selective drainage, preventing the device from shutting down due to excessive condensation and allowing stable operation even in high humidity environments, overcoming the limitations of traditional portable air conditioners and providing a good user experience.

[0196] The water inlet of the first drain pipe is set higher than the bottom of the water collection tank, preventing clogging of the lower pipe due to the intrusion of granular foreign matter and improving the reliability and stability of the entire system. Furthermore, there is a difference in height between the water inlet of the second drain pipe and the water inlet of the first drain pipe, so that in high humidity environments the second drain pipe is used first for drainage, allowing condensed water to be quickly discharged to the outside and avoiding alarm shutdowns.

[0197] A reinforcing rib structure is provided to improve the structural strength of the first drainage pipe, preventing deformation and damage, while also allowing for quick assembly.

[0198] The base body is provided with multiple compartments, allowing each component to be installed independently, making assembly quick and convenient, preventing mutual interference, improving the structural strength of the entire base body, and ensuring reliability and stability in use.

[0199] A water collecting tank and a water wheel can be installed to water-cool the condenser, improving the cooling efficiency of the condenser and increasing the overall efficiency of heat exchange, resulting in excellent usability.

[0200] The upper surface of the mounting part has a sloped structure, which allows the cooling water scattered in the condenser to quickly flow into the collection tank, thereby collecting the cooling water and ensuring cooling efficiency and effectiveness.

[0201] The support part has an inclined band-like structure, which saves space and has a long contact length with the condenser, improving the mounting reliability and stability of the condenser and preventing vibration.

[0202] The water collection tank is divided into a deep water area and a shallow water area, and by concentrating the water in the deep water area, it is possible to splash water even when the water volume is low, which is very effective.

[0203] An overflow hole is provided to allow overflow when there is a large amount of water, preventing water from entering other areas and increasing safety and reliability.

[0204] The overflow hole is located at the same height as the bottom of the overflow area, allowing the water in the overflow area to return to the collection tank, preventing the generation of bad odors caused by prolonged water stagnation and providing a good user experience.

[0205] A shielding plate structure is provided to prevent large foreign objects from entering the overflow area.

[0206] By installing a water level alarm in the overflow area, a water level alarm can be realized, improving safety and reliability during use and preventing the water level from being too high and affecting other areas, allowing for safe and reliable use.

[0207] The spiral body is made of foamed plastic, which has excellent formability, low mold and manufacturing costs, can be manufactured using aluminum molds, and is recyclable. It also has excellent insulation performance, prevents loss of cool air and reduces power consumption, has soundproofing functions, is comfortable to use, and is lightweight, making it easy to transport and install.

[0208] The spiral body employs an assembly type structure, which reduces the processing difficulty and manufacturing costs, simplifies assembly, and simplifies maintenance.

[0209] By providing a positioning structure, quick positioning can be achieved, and assembly precision and work efficiency can be improved.

[0210] By providing an air guide structure, it is possible to prevent air leakage, reduce the loss of cool air, and stabilize the air pressure, while at the same time reducing wind noise and power consumption, which has excellent energy-saving and environmentally friendly effects and is effective in use.

[0211] The upper air duct of the portable air conditioner of this invention has a compact structure, a long air flow distance, and adjustable air flow direction, providing a good user experience, high overall heat exchange efficiency, and low energy consumption.

[0212] It should be noted that the above is merely a preferred embodiment of the present invention, and a person skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these are also within the technical scope of the present invention. [Explanation of symbols]

[0213] 1. Air conditioner housing 101 Upper wind entrance 102 Cold air outlet 103 Lower wind entrance 104 Hot air outlet 105 Storage Tray 2 Upper spiral unit 2a Catchment Area 2b Drainage area 201 1st Shinfuguchi 202 1st air outlet 21 First drive motor 22 Support plate 221 Mounting part I 222 First mounting hole 23 First Spiral 23a 1st plate 23b First arc-shaped half shell 230 Center hole 2310 Second positioning recess I 233 First positioning groove 24 First impeller 25 Second Spiral 25a 2nd plate 25b Second arc-shaped half shell 250 Shinpukou 2510 Second positioning recess II 253 First positioning protrusion 254 Advance wind guide 26 Air outlet 261 Second positioning protrusion 3 Lower volute unit 301 2nd Shinfuguchi 302 2nd air outlet 32a Evaporator mounting area 32 First lower spiral plate 320 Water collection tank 321 Support part I 322 1st drain pipe 3220 Water supply hole 3221 Water supply pipe 323 2nd drain pipe 3231 Stopper 324 Support 325 Waterproof Strip 33 Second impeller 34 Second lower spiral plate 4 Base body 4a First mounting area 4b Second mounting area I 4c Overflow Area 4d Second Mounting Area II 41 Mounting part 410 Collection cavity 411 Support part II 4100 Drain hole 412 Overflow hole 413 Shaft hole 430 Alarm mounting groove 431 Alarm Mounting Post 432 Baffle 441 Mounting Post 51 Evaporator 52 Condenser 52a First condenser plate 52b Second condenser plate 520 Cooling Area 521 Upper condenser tube I 522 Lower condenser tube I 523 Upper Condenser Tube II 524 Lower Condenser Tube II 53 Compressor 54 Water-repellent motor 541 Waterwheel 56 Water Level Alarm 7 Air duct clamp

Claims

1. An upper air duct for a mobile air conditioner including an upper volute unit and a lower volute unit provided in an air conditioner housing, the lower volute unit includes a lower volute and a second impeller provided within the lower volute, the lower volute has a second inlet and a second outlet, and a condenser is provided on an air flow path of the second inlet, the upper volute unit includes an upper volute and a first impeller provided within the upper volute, the upper volute has a first inlet and a first outlet, the first outlet being provided facing upward; One or more cool air outlets corresponding to the first air outlets are provided in the upper part of the air conditioner housing, and an evaporator is provided on the air flow path of the first air inlet. An upper air duct characterized by:

2. 2. The upper air duct according to claim 1, wherein an air guide pipe for adjusting the air direction is detachably attached to the cold air outlet.

3. 2. The upper air duct according to claim 1, wherein a partition plate is provided within the air conditioner housing, dividing the air conditioner housing into an upper chamber and a lower chamber, the upper volute unit and the evaporator are provided in the upper chamber, and the lower volute unit and the condenser are provided in the lower chamber, and a compressor is provided within the lower chamber, the compressor being positioned on an air flow path of the lower volute unit and being able to cool the compressor.

4. The upper air duct of claim 1, wherein an evaporator mounting portion for mounting an evaporator is provided at the top of the lower volute unit, a water collection tank is provided at the bottom of the evaporator mounting portion, and a second drain pipe for draining water outside the air conditioner housing and / or a first drain pipe for draining water downward to cool the condenser are provided within the water collection tank.

5. The upper air duct of claim 1, characterized in that an upper air advance window for the air advance of the upper volute unit and a lower air advance window for the air advance of the lower volute unit are provided on the side wall of the air conditioner housing, and a dustproof net is removably attached to the upper air advance window and the lower air advance window.

6. 2. The upper air duct according to claim 1, wherein the upper volute is formed by joining parallel first and second upper volute plates, an edge of the first upper volute plate is bent in a direction opposite to a direction of the first impeller to form an air guide section connectable to an evaporator, and a lower end of the air guide section is extended at an angle to reach an evaporator mounting section on an upper part of the lower volute unit and is used to discharge condensed water in the section.

7. 2. The upper air duct according to claim 1, wherein an insulating layer is provided on an inner wall and / or an outer wall of the upper volute, or the upper volute is made of an insulating material.

8. 2. The upper air duct of claim 1, wherein the insulating material is a foamed plastic.

9. 2. The upper air blower duct according to claim 1, wherein the upper volute is formed by joining a first volute and a second volute, a first volute chamber is formed between the first volute and the second volute, an air inlet hole is formed in a side wall of the first volute chamber to form an air inlet end, and an air outlet is formed in an upper part of the first volute chamber to form an exhaust end.

10. 2. The upper air blower duct of claim 1, wherein the partition plate has a water collection area located directly below the evaporator and a drainage area connected to the water collection area and located directly above the condenser, the bottom of the water collection area being higher than the bottom of the drainage area so that water in the water collection area can be guided into the drainage area, and the bottom of the drainage area has a plurality of drainage holes arranged in a matrix or along the length of the condenser, and these drainage holes drain water and cool the condenser.

11. The upper air duct according to claim 1 , wherein the first air outlet is provided facing vertically upward.

12. 2. The upper air duct according to claim 1, wherein a dustproof net is provided at the cold air outlet.

13. 2. The upper air-blowing duct according to claim 1, wherein the first air outlet is provided with an exhaust air guide port for guiding the airflow to the cold air outlet.

14. A mobile air conditioner comprising the upper air blower duct according to any one of claims 1 to 13.

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