Mobile air conditioner

Abstract

The embodiment provides a mobile air conditioner, and belongs to the technical field of air conditioners. The mobile air conditioner comprises a rear shell, a panel and a grating cover. The panel is provided with an air outlet hole, and the periphery of the air outlet hole is provided with a clamping structure. The grating cover is installed on the air outlet hole, and the grating cover is provided with a matching structure matched with the clamping structure. The matching structure is clamped on the clamping structure, and the panel is installed on the rear shell. The processing cost and difficulty of the panel can be reduced.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and more specifically, to a portable air conditioner. Background Technology

[0002] Portable air conditioners integrate a compressor, exhaust fan, evaporator, condenser, and other components, and are equipped with casters on the base, allowing for easy movement and convenient use. The air outlet grille of current portable air conditioners is typically injection-molded integrally with the panel.

[0003] However, as the requirements for the aesthetics of portable air conditioners increase and the air volume needs to be optimized, the overall structure of the grille cover becomes more complex, which leads to increased processing costs and processing difficulties for the panel during overall manufacturing. Summary of the Invention

[0004] The problem addressed by this invention is that as the requirements for the aesthetics of portable air conditioners increase and the air volume needs to be optimized, the overall structure of the grille cover becomes more complex, resulting in increased processing costs and processing difficulty for the panel during overall manufacturing.

[0005] To address the aforementioned problems, embodiments of the present invention provide a portable air conditioner that can reduce the processing cost and difficulty of the panel.

[0006] This invention provides a portable air conditioner, comprising a rear housing, a panel, and a grille cover;

[0007] The panel is provided with an air outlet, and the periphery of the air outlet is provided with a snap-fit ​​structure. The grille cover is installed on the air outlet, and the grille cover is provided with a mating structure that cooperates with the snap-fit ​​structure. The mating structure is snapped into the snap-fit ​​structure. The panel is installed on the rear housing.

[0008] This application reduces processing difficulty and mold manufacturing costs by manufacturing the panel and grille cover separately. A snap-fit ​​structure is provided on the outer periphery of the air outlet of the panel, and a mating structure is provided on the grille cover. This snap-fit ​​between the snap-fit ​​and mating structures allows for easy assembly of the grille cover and the panel, making installation convenient.

[0009] In an optional embodiment, the snap-fit ​​structure is a snap fastener, which is disposed on the inner side of the panel, and the mating structure is a slot.

[0010] The grille cover is fitted inside the panel and partially fitted inside the air outlet.

[0011] The buckle engages with the slot.

[0012] Since the panel has a certain thickness, protruding clips on the inside of the panel reduces mold costs and makes the assembly structure invisible on the finished panel, resulting in a more complete and aesthetically pleasing appearance. Furthermore, the combination of clips and slots allows for both locking and limiting of movement.

[0013] In an optional embodiment, a plurality of connecting blocks are spaced apart on the outer periphery of the grid cover, the slot is disposed on the connecting block and the slot is hole-shaped, the buckle passes through the slot and engages with the rear surface of the connecting block.

[0014] Connecting blocks are installed on the outer periphery of the grid cover, and perforated slots are made on the connecting blocks so that the buckles can pass through the holes and snap onto the connecting blocks, making installation easier. Secondly, the perforated slots can cooperate with the inserted buckles to connect, thereby preventing snapping failure and falling off, and improving the connection strength.

[0015] In an optional embodiment, a limiting boss is provided on the outer periphery of the grille cover, and a limiting portion is provided on the outer periphery of the air outlet. The limiting boss abuts against the limiting portion, so that a portion of the grille cover extends out of the air outlet.

[0016] By utilizing the limiting boss protruding from the outer edge of the grille cover and the limiting part located on the outer periphery of the air outlet, the grille cover can extend out of the air outlet to achieve an aesthetic effect while also achieving positioning and sealing between the two. Secondly, due to the high degree of perforation of the grille cover, the limiting boss can also increase the mechanical strength of the grille cover.

[0017] In an optional embodiment, the grid cover is circular, and the grid cover gradually convexes outward from the edge towards the center, and then gradually concaves inward;

[0018] The grille cover has multiple air outlet grilles spaced apart. The air outlet grilles extend from the center of the grille cover to the edge and bend in a clockwise direction. The width of the air outlet grilles gradually widens and then gradually narrows along the length of the grille cover.

[0019] By optimizing the structure of the grille cover and the shape and direction of the air outlet grille, the air volume of the mobile fan can be increased.

[0020] In an optional embodiment, the portable air conditioner further includes a fan housing and centrifugal fan blades; the fan housing is installed in the cavity formed by the rear housing and the panel, and the fan housing has an air outlet, which corresponds to the grille cover;

[0021] The centrifugal fan blades are rotatably mounted inside the fan housing;

[0022] The upper sidewall of the air outlet extends upward at an angle;

[0023] The lower sidewall of the air outlet extends downward at an angle.

[0024] By extending the upper sidewall of the air outlet upwards and the lower sidewall downwards, the air outlet gradually increases in size, thereby increasing the air volume.

[0025] In an optional embodiment, the outward tilt angle of the upper sidewall ranges from 8° to 15°, and the outward tilt angle of the lower sidewall of the air outlet ranges from 30° to 40°.

[0026] This allows it to align with the air outlet, thereby increasing the airflow.

[0027] In an optional embodiment, the lower sidewall of the air outlet is connected to a downwardly inclined connecting guide slope; and / or,

[0028] The outer side of the lower sidewall of the air outlet is provided with a water-blocking rib.

[0029] A downward-sloping guide slope is installed on the lower side wall of the air outlet to correspond with the shape of the air outlet, thereby increasing the air volume. Water-blocking ribs are installed to guide condensation formed on the outside of the fan casing to the water collection tray below, preventing it from flowing along the outer wall of the fan casing and into the air outlet.

[0030] In an optional embodiment, an upper guide vane protrudes from the upper sidewall of the air outlet, and a lower guide vane protrudes from the lower side of the air outlet.

[0031] The angle between the upper guide vane and the vertical plane ranges from 15° to 20°, the length of the upper guide vane ranges from 40mm to 60mm, the thickness of the upper guide vane ranges from 1.5mm to 2.5mm, and the protrusion height of the upper guide vane ranges from 15mm to 20mm.

[0032] The angle between the lower guide vane and the vertical plane ranges from 5° to 10°, the length of the lower guide vane ranges from 40mm to 60mm, the thickness of the lower guide vane ranges from 1.5mm to 2.5mm, and the protrusion height of the lower guide vane ranges from 15mm to 20mm.

[0033] By setting up upper and lower air deflectors, whistling noise can be prevented and wind noise reduced.

[0034] In an optional embodiment, the portable air conditioner further includes a protective mesh frame, and the fan housing includes an upper volute and a lower volute. The upper volute is installed on the lower volute, and the lower volute is provided with a plurality of mounting holes. The upper volute is provided with a plurality of snap-fit ​​parts, and the snap-fit ​​parts are provided with snaps facing the air outlet.

[0035] The protective net frame has multiple mounting shafts protruding from both the upper and lower sides. The mounting shafts located below the protective net frame are inserted into the mounting holes one by one, and the mounting shafts located above the protective net frame are snapped into the slots one by one.

[0036] Guide strips are protruding from one side of both the mounting hole and the snap-fit ​​part.

[0037] A protective mesh frame can be installed to create a safety barrier at the air outlet. The mesh frame uses a plug-in design at the bottom and a snap-fit ​​design at the top, making installation easier. Guide strips are included to guide the installation axis during the installation process, further facilitating installation. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of a portable air conditioner provided in an embodiment of the present invention;

[0039] Figure 2 An exploded structural diagram of the panel and grille cover of a portable air conditioner provided in an embodiment of the present invention;

[0040] Figure 3 A schematic cross-sectional view of the grille cover of the portable air conditioner assembled on the panel according to an embodiment of the present invention;

[0041] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0042] Figure 5 This is a schematic diagram of the structure of the centrifugal fan of the portable air conditioner provided in an embodiment of the present invention;

[0043] Figure 6 This is an exploded structural diagram of the centrifugal fan of a portable air conditioner provided in an embodiment of the present invention;

[0044] Figure 7 A longitudinal sectional view of the fan casing of a centrifugal fan for a portable air conditioner provided in an embodiment of the present invention;

[0045] Figure 8 A schematic diagram of the upper volute of the centrifugal fan in a portable air conditioner provided in an embodiment of the present invention;

[0046] Figure 9A schematic diagram of the lower volute of the centrifugal fan in a portable air conditioner provided in an embodiment of the present invention;

[0047] Figure 10 This is a simulation diagram of the outlet velocity vector of the original centrifugal fan casing.

[0048] Figure 11 This is a simulation diagram of the velocity vector near the volute tongue of the original centrifugal fan casing;

[0049] Figure 12 This is a pressure cloud diagram of the original centrifugal fan's duct cross-section.

[0050] Figure 13 This is a simulation diagram of the outlet velocity vector of the centrifugal fan casing of the portable air conditioner of the present invention;

[0051] Figure 14 This is a vector diagram showing the internal velocity of the centrifugal fan casing and blade passage of the portable air conditioner of the present invention.

[0052] Figure 15 This is a simulation diagram of the velocity vector near the volute tongue of the centrifugal fan casing of the portable air conditioner of the present invention;

[0053] Figure 16 This is a pressure cloud diagram of the duct cross-section of the centrifugal fan of the portable air conditioner of the present invention.

[0054] Icons: 100 - Portable air conditioner; 110 - Rear housing; 121 - Air outlet; 130 - Panel; 131 - Snap-fit ​​structure; 133 - Buckle; 135 - Limiting part; 150 - Grille cover; 151 - Mating structure; 153 - Air outlet grille; 155 - Slot; 157 - Connecting block; 159 - Limiting boss; 170 - Centrifugal fan; 171 - Fan housing; 172 - Centrifugal fan 173 - Air outlet; 174 - Upper sidewall; 175 - Lower sidewall; 176 - Guide slope; 177 - Air guide vane; 178 - Water baffle rib; 179 - Upper guide vane; 181 - Lower guide vane; 182 - Upper volute; 183 - Lower volute; 185 - Mounting hole; 186 - Snap-fit ​​part; 187 - Bayonet; 188 - Guide strip; 190 - Protective net frame; 191 - Mounting shaft. Detailed Implementation

[0055] Example

[0056] This invention provides a portable air conditioner 100, which can reduce the processing cost and difficulty of the panel 130.

[0057] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0058] Please refer to Figures 1 to 4The portable air conditioner 100 includes a rear housing 110, a panel 130, and a grille cover 150. The panel 130 is provided with an air outlet 121, and a snap-fit ​​structure 131 is provided around the air outlet 121. The grille cover 150 is installed on the air outlet 121, and a mating structure 151 is provided on the grille cover 150 to cooperate with the snap-fit ​​structure 131. The mating structure 151 is snapped into the snap-fit ​​structure 131. The panel 130 is installed on the rear housing 110.

[0059] In this embodiment, the panel 130 and the grille cover 150 are manufactured separately, which reduces the processing difficulty and the cost of mold manufacturing. A snap-fit ​​structure 131 is provided on the outer periphery of the air outlet 121 of the panel 130, and a mating structure 151 is provided on the grille cover 150. In this way, the snap-fit ​​structure 131 and the mating structure 151 can be easily assembled with the grille cover 150 and the panel 130, making installation convenient.

[0060] In this embodiment, the panel 130 and the grid cover 150 are manufactured by separate injection molding. The panel 130 is generally U-shaped, with the two sides of its horizontal section slightly extending out of the panel 130 to connect with the rear housing 110. The connection between the horizontal section and the vertical end is transitioned by an arc surface.

[0061] In this embodiment, the air outlet 121 is circular. The grille cover 150 is circular, with a diameter between 250mm and 280mm. The grille cover 150 gradually convexes outward from the edge towards the center, then gradually concaves inward. The center of the grille cover 150 is concave, while the part with a radius slightly closer to the center convexes outward, thus achieving an arc-shaped transition. This matches the arc-shaped transition of the panel 130, making it more aesthetically pleasing and facilitating airflow. Multiple air outlet grilles 153 are spaced apart on the grille cover 150, extending from the center of the grille cover 150 towards the edge. They extend in a clockwise direction, and the width of the air outlet grille 153 gradually widens and then narrows along its length. This can be understood as the air outlet grilles 153 spiraling clockwise from the center of the grille cover 150 towards the edge. The spacing between two adjacent ends of the air vent grilles 153 near the center of the grille cover 150 ranges from 2mm to 4mm, the spacing at the widest point in the middle ranges from 8mm to 12mm, and the spacing at the other end ranges from 3mm to 5mm. For example, 3mm, 10mm, and 4mm can be used as a group.

[0062] By optimizing the structure of the grille cover 150 and the shape and rotation direction of the air outlet grille 153 as described above, the air volume of the mobile fan can be increased.

[0063] Please refer to Figures 3 to 4In this embodiment, the snap-fit ​​structure 131 is a snap-fit ​​133, which is disposed on the inner side of the panel 130, and the mating structure 151 is a slot 155. The grille cover 150 is assembled on the inner side of the panel 130 and partially assembled in the air outlet 121. The snap-fit ​​133 snaps into the slot 155.

[0064] Since the panel 130 has a certain thickness, the buckle 133 protrudes from the inside of the panel 130. This reduces the cost of the mold and makes the assembly structure invisible from the outside of the assembled panel 130, resulting in a more complete and aesthetically pleasing appearance. Furthermore, the cooperation between the buckle 133 and the slot 155 allows for both snap-fit ​​and positioning.

[0065] Of course, in some embodiments of this application, the positions of the buckle 133 and the slot 155 can be interchanged, that is, the buckle 133 is set in the grid cover 150, and the slot 155 is set in the panel 130.

[0066] In this embodiment, a plurality of connecting blocks 157 are spaced apart on the outer periphery of the grid cover 150. A slot 155 is provided on the connecting block 157 and the slot 155 is hole-shaped. The buckle 133 passes through the slot 155 and engages with the rear surface of the connecting block 157.

[0067] A connecting block 157 is provided on the outer periphery of the grid cover 150, and a hole-shaped slot 155 is formed on the connecting block 157 so that the buckle 133 can pass through the hole and be snapped onto the connecting block 157, thereby making the installation more convenient. Secondly, the hole-shaped slot 155 can cooperate with the inserted buckle 133 to connect, thereby preventing the snap-fit ​​from failure and falling off, and improving the connection strength.

[0068] Please refer to Figure 4 In this embodiment, the buckle 133 protrudes outwards and is tilted outwards at an angle of 2°. The slot 155 has an opening that is wider on one side than the other, meaning its cross-section is roughly trapezoidal. This facilitates the insertion of the buckle 133 into the slot 155 during the installation of the grid cover 150. Pressing down on the grid cover 150 guides the buckle 133 through the side wall of the slot 155, causing it to deform and extend beyond the side wall, thus engaging with the end face of the connecting block 157.

[0069] Please refer to Figure 2 Specifically, there are three clips 133: one on top of the grid cover 150 and one on each side. This allows for the positioning and fixing of the grid cover.

[0070] To ensure uniform gaps between the grille cover 150 and the panel 130, and that the extended portions are evenly aligned, in this embodiment, a limiting boss 159 protrudes from the outer periphery of the grille cover 150, and a limiting portion 135 is provided on the outer periphery of the air outlet 121. The limiting boss 159 abuts against the limiting portion 135, allowing the shell portion of the grille cover 150 to extend beyond the air outlet 121.

[0071] By utilizing the limiting boss 159 protruding from the outer edge of the grille cover 150 and the limiting part 135 located on the outer periphery of the air outlet 173, the grille cover 150 can extend out of the air outlet 121, achieving both aesthetic appeal and positioning and sealing between the two. Secondly, due to the high degree of perforation in the grille cover 150, the limiting boss 159 also increases the mechanical strength of the grille cover 150. It should be noted that the limiting part 135 can be a ring platform or a ring groove.

[0072] Secondly, please refer to Figure 4 In this embodiment, the portion of the grille cover 150 extending into the air outlet 173 has a certain taper, approximately 10 degrees, and the side wall of the air outlet 121 is also provided with a matching taper. This ensures that the gap between the two is uniform and that the internal structure is not visible.

[0073] Please refer to Figure 1 , Figures 5 to 9 In this embodiment, the portable air conditioner 100 further includes a fan housing 171 and a centrifugal fan blade 172. The fan housing 171 is a volute and is installed within the cavity formed by the rear housing 110 and the panel 130. The fan housing 171 has an air outlet 173, which corresponds to the grille cover 150. That is, the air blown out by the air outlet 173 can be blown out through the grille cover 150. The centrifugal fan blade 172 is rotatably installed inside the fan housing 171. The upper sidewall 174 of the air outlet 173 extends upward at an angle. The lower sidewall 175 of the air outlet 173 extends downward at an angle.

[0074] By extending the upper sidewall 174 of the air outlet 173 upwards and the lower sidewall 175 downwards, the air outlet 173 gradually increases in size, thereby increasing the air volume.

[0075] Please refer to Figure 7 Generally, the outward tilt angle of the upper sidewall 174 ranges from 8° to 15°, and can be 11°. The outward tilt angle of the lower sidewall 175 of the air outlet 173 ranges from 30° to 40°, and can be 34°. This corresponds to the air outlet 121, thereby increasing the air volume.

[0076] Please refer to Figure 5 , Figure 6 and Figure 7In this embodiment, the lower sidewall 175 of the air outlet 173 is connected to a downwardly inclined guide surface 176. The guide surface is approximately arc-shaped, and its projection roughly corresponds to the edge of the grille cover 150. The angle of the guide surface is approximately 3°. The upper sidewall 174 of the air outlet 173 is connected to a guide vane 177, so that the projection of the air outlet 173 of the fan housing 171 forms a near-circular shape corresponding to the air outlet 121.

[0077] An inclined guide slope 176 is provided on the lower side wall 175 of the air outlet 173 so that it corresponds to the shape of the air outlet 121, thereby increasing the air volume.

[0078] In this embodiment, a water-blocking rib 178 is provided on the outer side of the lower sidewall 175 of the air outlet 173. The water-blocking rib 178 can guide the condensation formed on the outer side of the fan housing 171 to the water receiving tray below, preventing it from flowing along the outer wall of the fan housing 171 and flowing to the air outlet 121.

[0079] Please refer to Figures 5 to 9 In this embodiment, an upper guide vane 179 protrudes inward from the upper sidewall 174 of the air outlet 173, and a lower guide vane 181 protrudes inward from the lower side of the air outlet 173. The distance between the end faces of the upper guide vane 179 and the lower guide vane 181 and the end face of the air outlet 173 is approximately 30 mm. The angle between the upper guide vane 179 and the vertical plane ranges from 15° to 20°. The length of the upper guide vane 179 ranges from 40 mm to 60 mm, and the thickness of the upper guide vane 179 ranges from 1.5 mm to 2.5 mm. The protrusion height of the upper guide vane 179 ranges from 15 mm to 20 mm. The angle between the lower guide vane 181 and the vertical plane ranges from 5° to 10°, the length of the lower guide vane 181 ranges from 40mm to 60mm, the thickness of the lower guide vane 181 ranges from 1.5mm to 2.5mm, and the protrusion height of the lower guide vane 181 ranges from 15mm to 20mm.

[0080] By setting the upper guide vane 179 and the lower guide vane 181, whistling noise can be prevented and wind noise reduced.

[0081] Please refer to Figures 5 to 9In this embodiment, the portable air conditioner 100 also includes a protective mesh frame 190. The fan housing 171 includes an upper volute 182 and a lower volute 183. The upper volute 182 is mounted on the lower volute 183. The lower volute 183 is provided with a plurality of mounting holes 185, and the upper volute 182 is provided with a plurality of snap-fit ​​parts 186. The snap-fit ​​parts 186 are provided with snap-fit ​​slots 187 facing the air outlet 173. The upper and lower sides of the protective mesh frame 190 have a plurality of mounting shafts 191 protruding outward. The mounting shafts 191 located below the protective mesh frame 190 are inserted into the mounting holes 185 one by one, and the mounting shafts 191 located above the protective mesh frame 190 are snapped into the snap-fit ​​slots 187 one by one. A guide strip 188 protrudes from one side of the mounting holes 185 and the snap-fit ​​parts 186.

[0082] By setting up a protective mesh frame 190, a safety barrier can be formed at the air outlet 173. The lower part of the protective mesh frame 190 uses a plug-in connection and the upper part uses a snap-fit ​​connection, which makes the installation of the protective mesh frame 190 more convenient. The guide strip 188 can guide the installation shaft 191 during the installation of the protective mesh frame 190, thereby facilitating the installation.

[0083] Figure 10 This is a simulation diagram of the outlet velocity vector of the original centrifugal fan 170's casing 171. Figure 11 This is a simulation diagram of the velocity vector near the volute tongue of the original centrifugal fan 170's casing 171. Figure 12 This is a pressure cloud diagram of the duct section of the original centrifugal fan 170. Figure 13 This is a simulation diagram of the outlet velocity vector of the centrifugal fan 170 of the portable air conditioner 100 of the present invention, which is located at the outlet of the fan casing 171. Figure 14 This is a vector diagram showing the internal velocity of the blade passage of the centrifugal fan 170 of the portable air conditioner 100 of the present invention, specifically the fan casing 171. Figure 15 This is a simulation diagram of the velocity vector near the volute tongue of the centrifugal fan 171 of the centrifugal fan 170 of the portable air conditioner 100 of the present invention. Figure 16 This is a pressure cloud diagram of the duct section of the centrifugal fan 170 in the portable air conditioner 100 of this invention. Comparison shows that under the same conditions—using the turbulence model RNGk-ε, the standard wall function, a viscous drag of 1.36 × 10⁷, an inertial drag of 2.57 × 10², a pressure inlet boundary, a pressure outlet boundary, and a rotational speed of 1100 rpm—the simulated airflow of the centrifugal fan 170 in this application is 405 m³ / h, an increase of 15.85%. In the velocity vector diagram, flow separation within the blade passage is reduced, the vortex at the fan center is decreased, and the pressure distribution at the fan center in the pressure cloud diagram is more uniform. The fluid dynamics performance of the fan duct is significantly improved, the overall flow rate is increased, and the noise characteristics are better.

[0084] In summary, the beneficial effects of the portable air conditioner 100 provided in this embodiment of the invention include:

[0085] In this embodiment, the panel 130 and the grille cover 150 are manufactured separately, which reduces the processing difficulty and the cost of mold manufacturing. A snap-fit ​​structure 131 is provided on the outer periphery of the air outlet 121 of the panel 130, and a mating structure 151 is provided on the grille cover 150. The snap-fit ​​between the snap-fit ​​structure 131 and the mating structure 151 facilitates the assembly of the grille cover 150 and the panel 130, making installation convenient. Furthermore, optimization of the fan housing 171 of the centrifugal fan 170 increases airflow and reduces noise.

[0086] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A mobile air conditioner characterized by comprising: The mobile air conditioner comprises a rear shell, a panel and a grating cover. The panel is provided with an air outlet hole, and a clamping structure is arranged on the periphery of the air outlet hole. The grating cover is installed on the air outlet hole, and a matching structure is arranged on the grating cover and matched with the clamping structure. The clamping structure is a buckle, and the matching structure is a clamping groove.

2. The mobile air conditioner of claim 1, wherein, The grating cover is assembled on the inner side of the panel and partially assembled in the air outlet hole. The buckle is clamped in the clamping groove. The outer periphery of the grating cover is provided with a plurality of connecting blocks, and the clamping groove is arranged on the connecting block.

3. The mobile air conditioner according to claim 2, wherein, The outer periphery of the grating cover is provided with a limiting boss, and the outer periphery of the air outlet hole is provided with a limiting part.

4. The mobile air conditioner according to claim 2 or 3, characterized by The grating cover is circular, and the grating cover is gradually convex from the edge to the center and then gradually concave.

5. The mobile air conditioner according to any one of claims 1-3, wherein, 6. The mobile air conditioner of claim 1, wherein The upper side wall of the air outlet hole extends upwardly and outwardly. The lower side wall of the air outlet hole extends downwardly and outwardly. The inclination angle of the outward expansion of the upper side wall is in the range of 8°-15°, and the inclination angle of the outward expansion of the lower side wall is in the range of 30°-40°.

7. The mobile air conditioner of claim 6, wherein The end of the lower side wall of the air outlet hole is connected with a downwardly inclined flow guide slope.

8. The mobile air conditioner of claim 6, wherein, The outer side of the lower side wall of the air outlet hole is provided with a water blocking rib. The upper side wall of the air outlet hole is provided with an upper flow guide piece, and the lower side of the air outlet hole is provided with a lower flow guide piece.

9. The mobile air conditioner of claim 6, wherein, The angle between the upper flow guide piece and the vertical plane is in the range of 15°-20°, the length of the upper flow guide piece is in the range of 40mm-60mm, the thickness of the upper flow guide piece is in the range of 1.5mm-2.5mm, and the protruding height of the upper flow guide piece is in the range of 15mm-20mm. The angle between the lower flow guide piece and the vertical plane is in the range of 5°-10°, the length of the lower flow guide piece is in the range of 40mm-60mm, the thickness of the lower flow guide piece is in the range of 1.5mm-2.5mm, and the protruding height of the lower flow guide piece is in the range of 15mm-20mm. ​ 10. The mobile air conditioner of claim 6, wherein, The mobile air conditioner further comprises a protective net frame, the fan shell comprises an upper volute and a lower volute, the upper volute is installed on the lower volute, a plurality of mounting holes are arranged on the lower volute, and a plurality of clamping portions are arranged on the upper volute, and a clamping hole is arranged on the clamping portion and faces the direction of the air outlet; A plurality of mounting shafts are outwardly protruded on the upper and lower sides of the protective net frame, the mounting shafts below the protective net frame are one-to-one correspondingly inserted into the mounting holes, and the mounting shafts above the protective net frame are one-to-one correspondingly clamped into the clamping holes; A guide strip is protruded on one side of the mounting hole and the clamping portion.

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