Fan assembly and mobile air conditioner

Abstract

The utility model relates to the technical field of air conditioners, particularly provides a fan assembly and a mobile air conditioner, and solves the problem that a volute tongue part in the fan assembly generates condensation. In order to achieve the purpose, the draught fan assembly comprises a first volute at least comprising a first arc-shaped housing and a first volute tongue, the first volute tongue comprises a first arc-shaped section and a first horizontal section, and the upper surface of the first horizontal section is provided with a plurality of first flow guide ribs which are arranged at intervals in the length direction of the first horizontal section and extend in the first direction; the second volute and the first volute are correspondingly connected in a buckled mode and jointly define a wind wheel space, the second volute at least comprises a second arc-shaped cover shell and a second volute tongue, the second volute tongue comprises a second arc-shaped section and a second horizontal section, and the upper surface of the second horizontal section is provided with a plurality of second flow guide ribs which are arranged at intervals in the length direction of the second horizontal section and extend in the first direction. Through the arrangement of the first flow guide rib and the second flow guide rib, condensate water generated on the upper surfaces of the first horizontal section and the second horizontal section can be prevented from flowing into the wind wheel space when low-temperature airflow flows out of the fan assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and specifically provides a fan assembly and a mobile air conditioner. BACKGROUND

[0002] At present, in order to improve the convenience of indoor air conditioning, a mobile air conditioner emerges as the times require, which is an air conditioning system that can be easily moved and installed, and is usually designed as a separate machine and can be easily moved between different rooms when needed. The mobile air conditioner usually comprises a mutually independent outdoor heat exchange cavity and an indoor heat exchange cavity, wherein the outdoor heat exchange cavity is mainly provided with an outdoor heat exchange assembly, i.e. components such as a compressor, a condenser and an outdoor fan, and the indoor heat exchange cavity is mainly provided with an indoor heat exchange assembly, i.e. components such as an evaporator and an indoor fan. The compressor, the evaporator and the condenser are connected by a refrigerant pipeline to enable the circulation of refrigerant. When the refrigerant flows to the evaporator, it mainly exchanges heat with the air delivered to the indoor heat exchange cavity, so as to adjust the temperature of the indoor air; when the refrigerant flows to the condenser, it mainly exchanges heat with the air delivered to the indoor heat exchange cavity, so as to achieve the cooling of the refrigerant, and the air after heat exchange is discharged to the outdoor.

[0003] In the related art, the indoor heat exchange cavity and the outdoor heat exchange cavity are arranged in an up-down manner, and an air outlet of the mobile air conditioner is arranged on the top plate of the shell of the mobile air conditioner, and correspondingly, the air outlet of the indoor fan is also arranged at the top end. However, when the mobile air conditioner operates in a cooling mode, the volute tongue of the air outlet of the indoor fan may have condensation phenomenon, which may flow into the air duct, and there is a safety hazard. Utility model content

[0004] The present application aims to solve the above technical problems, i.e. to solve the problem of condensation of the volute tongue part in the fan assembly.

[0005] In a first aspect, the utility model provides a fan assembly, comprising: a first volute, comprising at least a first arc-shaped housing and a first volute tongue, the first volute tongue comprising a first arc-shaped section and a first horizontal section, and the upper surface of the first horizontal section being provided with a plurality of first flow guide ribs spaced along the length direction thereof and extending in a first direction; a second volute, being connected with the first volute in a corresponding and clamping manner and jointly limiting a fan wheel space, the second volute comprising at least a second arc-shaped housing and a second volute tongue, the second volute tongue comprising a second arc-shaped section and a second horizontal section, and the upper surface of the second horizontal section being provided with a plurality of second flow guide ribs spaced along the length direction thereof and extending in the first direction; wherein the first direction is the direction from the first volute to the second volute.

[0006] In the technical scheme, the first guide ribs arranged on the upper surface of the first horizontal section and the second guide ribs arranged on the upper surface of the second horizontal section can prevent the condensed water generated on the upper surfaces of the first horizontal section and the second horizontal section from flowing into the impeller space when the air flow flowing out of the fan assembly is low-temperature air flow, thereby avoiding the rusting or short circuit of the components in the impeller space, and improving the safety of the fan assembly. Specifically, on the one hand, the first guide ribs close to the first arc-shaped section and the second guide ribs close to the second arc-shaped section can block the generated condensed water; on the other hand, the first guide ribs and the second guide ribs extend along the first direction, can guide the generated condensed water to flow in the direction from the first volute to the second volute, and thus the condensed water is collected on the first horizontal section and the second horizontal section.

[0007] In the optional embodiment of the fan assembly, the first guide ribs and the second guide ribs are correspondingly arranged, and a water passing gap is formed between the first guide rib and the corresponding second guide rib.

[0008] By correspondingly arranging the first guide ribs and the second guide ribs, the condensed water between two adjacent first guide ribs can flow towards the corresponding two adjacent second guide ribs; meanwhile, a water passing gap is formed between the first guide rib and the corresponding second guide rib, so that the condensed water can flow in other directions.

[0009] In the optional embodiment of the fan assembly, the first guide ribs and the second guide ribs are arranged in a staggered manner.

[0010] By arranging the first guide ribs and the second guide ribs in a staggered manner, the efficiency of guiding the condensed water can be improved, and the stagnation of the condensed water can be avoided.

[0011] In the optional embodiment of the fan assembly, the first horizontal section is configured with a first recess extending along the first direction; and the second horizontal section is configured with a second recess corresponding to the first recess.

[0012] By arranging the first recess and the second recess, the condensed water can flow towards the first recess and / or the second recess, so that the condensed water can be effectively collected to avoid flowing in the direction of the impeller space.

[0013] In the optional embodiment of the fan assembly, the first horizontal section includes a first side end and a second side end opposite to each other in the first direction, and the first horizontal section is downwardly inclined from the first side end to the second side end; the second horizontal section includes a third side end and a fourth side end opposite to each other in the first direction, and the second horizontal section is downwardly inclined from the third side end to the fourth side end; wherein the second side end corresponds to the third side end.

[0014] Thus, by setting the first horizontal section to be downwardly inclined from the first side end to the second side end, and setting the second horizontal section to be downwardly inclined from the third side end to the fourth side end, the condensate water can be guided to flow towards the fourth side end, i.e. the condensate water flows in one direction, which is convenient for collection.

[0015] In the optional embodiment of the fan assembly, the second volute further comprises: a mounting side edge arranged at the fourth side end in vertical extension; and a drain hole arranged at the bending connection between the mounting side edge and the second horizontal section.

[0016] The mounting side edge is used to connect with other components; by arranging the drain hole at the bending connection between the mounting side edge and the second horizontal section, the condensate water can be drained in time.

[0017] In the optional embodiment of the fan assembly, the drain hole is arranged corresponding to the second recess; and / or, a flow guiding gap is formed between the second flow guiding rib and the mounting side edge.

[0018] By arranging the drain hole corresponding to the second recess, the condensate water at the lowest position can be drained to avoid stagnation of the condensate water, thereby reducing the breeding of bacteria; by forming the flow guiding gap between the second flow guiding rib and the mounting side edge, the flow of the generated condensate water towards the drain hole is facilitated.

[0019] In the optional embodiment of the fan assembly, the lower surface of the first horizontal section is provided with an electric heating wire; and the lower surface of the second horizontal section is provided with an electric heating wire.

[0020] By arranging the electric heating wire, the electric heating wire can be started to evaporate the condensate water in the case that the condensate water is generated in the first horizontal section and / or the second horizontal section.

[0021] In the optional embodiment of the fan assembly, the upper surface of the first horizontal section is coated with a hydrophobic coating; and / or, the upper surface of the second horizontal section is coated with a hydrophobic coating.

[0022] By arranging the hydrophobic coating, the flowability of the condensate water can be improved.

[0023] In a second aspect, the utility model provides a mobile air conditioner, comprising the fan assembly.

[0024] When the above technical solution is adopted, if the fan assembly is used as an indoor fan and the portable air conditioner is operating in cooling mode, the first guide rib on the upper surface of the first horizontal section and the second guide rib on the upper surface of the second horizontal section can prevent condensate generated on the upper surfaces of the first and second horizontal sections from flowing into the impeller space when low-temperature airflow flows out of the fan assembly. This avoids corrosion or short circuits of components within the impeller space, thus improving safety. Specifically, on the one hand, the first guide rib near the first arc-shaped section and the second guide rib near the second arc-shaped section can block the generated condensate; on the other hand, the first and second guide ribs extend along the first direction, guiding the generated condensate to flow from the first volute to the second volute, thereby collecting it on the first and second horizontal sections. Attached Figure Description

[0025] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:

[0026] Figure 1 This is a structural schematic diagram of a fan assembly provided by this utility model;

[0027] Figure 2 This is an exploded view of a fan assembly provided by this utility model;

[0028] Figure 3 This is a first-view structural schematic diagram of a second volute provided by this utility model;

[0029] Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0030] Figure 5 This is a schematic diagram of the structure of a first volute provided by this utility model;

[0031] Figure 6 This is a schematic diagram of the second-view structure of a second volute provided by this utility model;

[0032] Figure 7 This is a structural schematic diagram of a portable air conditioner provided by this utility model, wherein part of the outer casing has been removed;

[0033] Figure 8 This is a schematic diagram of another portable air conditioner provided by this utility model;

[0034] Figure 9 yes Figure 8 A magnified view of a portion of the image.

[0035] Figure label:

[0036] 10. Outer casing; 11. Indoor air outlet; 12. Partition panel;

[0037] 100, first volute; 110, first arc-shaped cover; 111, first gap; 120, first volute tongue; 121, first arc-shaped section; 122, first horizontal section; 1221, first recess; 130, first guide vane;

[0038] 200, second volute; 210, second arc-shaped cover; 211, second gap; 220, second volute tongue; 221, second arc-shaped section; 222, second horizontal section; 2221, second recess; 230, second guide vane; 240, mounting side; 250, drain hole;

[0039] 300, air outlet guard;

[0040] 400, motor assembly;

[0041] 500, wind wheel;

[0042] 600, air outlet frame. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. In the following technical description, in order to facilitate the explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0044] It should be noted that in the description of the present application, the terms indicating the direction or positional relationship of the terms "middle", "upper", "lower", "vertical", "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In combination with Figures 1 to 6As shown, the fan assembly provided by the utility model comprises a first volute 100 and a second volute 200.

[0047] The first volute 100 comprises at least a first arc-shaped cover 110 and a first volute tongue 120, the first volute tongue 120 comprises a first arc-shaped section 121 and a first horizontal section 122, and the upper surface of the first horizontal section 122 is provided with a plurality of first flow guide ribs 130 which are spaced along the length direction of the first horizontal section 122 and extend in a first direction.

[0048] Optionally, the first volute 100 and the second volute 200 are correspondingly arranged and connected with each other in a clamping manner.

[0049] Optionally, the first arc-shaped cover 110 is provided with an air inlet plate on the side opposite to the opening, and the air inlet plate is provided with a fan air inlet; and the second arc-shaped cover 210 is provided with a fixing plate on the side opposite to the opening, and the fixing plate is provided with a motor assembly 400 and a fan wheel 500.

[0050] Optionally, the top end of the first arc-shaped cover 110 is provided with a first notch 111, and the top end of the second arc-shaped cover 210 is provided with a second notch 211, and the first notch 111 and the second notch 211 jointly form a fan outlet of the fan assembly.

[0051] Optionally, the first volute tongue 120 is arranged at one side end of the first notch 111, and the first horizontal section 122 extends away from the first notch 111; and the second volute tongue 220 is arranged at one side end of the second notch 211 corresponding to the first volute tongue 120, and the second horizontal section 222 extends away from the second notch 211.

[0052] Optionally, the air outlet of the fan assembly is provided with an air outlet guard net 300. The air outlet guard net 300 can disperse the air outlet airflow and protect the internal components from being touched by the user.

[0053] Alternatively, the air outlet guard net 300 is not provided.

[0054] Optionally, when the fan assembly is an indoor fan of a mobile air conditioner, in the case that the mobile air conditioner operates in a cooling mode, the airflow flowing out of the air outlet of the fan assembly is a low-temperature airflow. At this time, the temperature of the upper surface of the first horizontal section 122 is lower than that of the lower surface, and the temperature of the upper surface of the second horizontal section 222 is lower than that of the lower surface. Therefore, condensation may be generated on the upper surface of the first horizontal section 122 and the upper surface of the second horizontal section 222. The first flow guide ribs 130 arranged on the upper surface of the first horizontal section 122 can block and guide the generated condensation. Specifically, on the one hand, the condensation can be prevented from flowing to the first arc-shaped section 121, and on the other hand, the condensation can be guided to the direction of the second horizontal section 222. Similarly, the second flow guide ribs 230 arranged on the upper surface of the second horizontal section 222 can block and guide the generated condensation. Specifically, on the one hand, the condensation can be prevented from flowing to the second arc-shaped section 221, and on the other hand, the condensation can be guided to the direction of the first horizontal section 122. Thus, the condensed water can be collected on the first horizontal section 122 and the second horizontal section 222, thereby improving the safety of the fan assembly.

[0055] In addition, the first flow guide ribs 130 and the second flow guide ribs 230 can cooperate with the air outlet guard net 300 to improve the aesthetics.

[0056] In the above technical solution, by arranging the first flow guide ribs 130 on the upper surface of the first horizontal section 122 and the second flow guide ribs 230 on the upper surface of the second horizontal section 222, when the airflow flowing out of the fan assembly is a low-temperature airflow, the condensed water generated on the upper surfaces of the first horizontal section 122 and the second horizontal section 222 can be prevented from flowing into the impeller space, thereby avoiding the problem of rust or short circuit of the components in the impeller space, and further improving the safety of the fan assembly. Specifically, on the one hand, the first flow guide ribs 130 close to the first arc-shaped section 121 and the second flow guide ribs 230 close to the second arc-shaped section 221 can block the generated condensed water; on the other hand, the first flow guide ribs 130 and the second flow guide ribs 230 extend in the first direction, which can guide the generated condensed water to flow from the first volute 100 to the second volute 200, thereby being collected on the first horizontal section 122 and the second horizontal section 222.

[0057] In the optional embodiment of the above fan assembly, the first flow guide ribs 130 and the second flow guide ribs 230 are correspondingly arranged, and a water passing gap is formed between the first flow guide ribs 130 and the corresponding second flow guide ribs 230.

[0058] By correspondingly arranging the first guide ribs 130 and the second guide ribs 230, the condensate water between two adjacent first guide ribs 130 is facilitated to flow towards the corresponding two adjacent second guide ribs 230; meanwhile, a water passing gap is formed between the first guide rib 130 and the corresponding second guide rib 230, so that the condensate water is facilitated to flow in other directions.

[0059] Alternatively, the first guide rib 130 close to the first arc-shaped section 121 is opposite to the second guide rib 230 close to the second arc-shaped section 221, so as to avoid the condensate water flowing to the inside of the fan assembly.

[0060] In the optional embodiment of the fan assembly, the first guide ribs 130 and the second guide ribs 230 are arranged in a staggered manner.

[0061] By arranging the first guide ribs 130 and the second guide ribs 230 in a staggered manner, the condensate water guiding efficiency can be improved, and the condensate water can be avoided from being retained.

[0062] Optionally, the extending directions of the first guide ribs 130 and the second guide ribs 230 are both the width directions of the first horizontal section 122 / second horizontal section 222, i.e. the directions of the first volute 100 and the second volute 200.

[0063] Alternatively, the first guide ribs 130 are parallel to the second guide ribs 230, and are arranged in an inclined manner relative to the width directions of the first horizontal section 122 / second horizontal section 222.

[0064] In the optional embodiment of the fan assembly, the first horizontal section 122 is configured with a first recess 1221 extending in the first direction; and the second horizontal section 222 is configured with a second recess 2221 corresponding to the first recess 1221.

[0065] By the arrangement of the first recess 1221 and the second recess 2221, the condensate water is facilitated to flow towards the first recess 1221 and / or the second recess 2221, so that the condensate water can be effectively collected to avoid flowing in the direction of the impeller space.

[0066] That is, by the setting of the first recessed portion 1221, the first horizontal section 122 can be configured as a concave structure with high in the middle and low at both ends in the length direction, and the condensed water can have a downward flow tendency under the action of the first recessed portion 1221, so that the condensed water flows towards the first recessed portion 1221. Correspondingly, by the setting of the second recessed portion 2221, the second horizontal section 222 can be configured as a concave structure with high in the middle and low at both ends in the length direction, and the condensed water can have a downward flow tendency under the action of the first recessed portion 2221, so that the condensed water flows towards the first recessed portion 2221. Further, the first flow guide rib 130 and the second flow guide rib 230 have a gap therebetween, and the condensed water in the first recessed portion 1221 and the second recessed portion 2221 can mix with each other. Further, by the setting of the first recessed portion 1221 and the second recessed portion 2221, the collection capacity of the condensed water can also be improved, and the collection amount can be increased.

[0067] Alternatively, only the first recessed portion 1121 or the second recessed portion 2221 is provided. Alternatively, neither the first recessed portion 1221 nor the second recessed portion 2221 is provided.

[0068] In the optional embodiment of the fan assembly, the first horizontal section 122 includes a first side end and a second side end opposite in the first direction, and the first horizontal section 122 is downwardly inclined from the first side end to the second side end; the second horizontal section 222 includes a third side end and a fourth side end opposite in the first direction, and the second horizontal section 222 is downwardly inclined from the third side end to the fourth side end; and the second side end corresponds to the third side end.

[0069] In this way, by setting the first horizontal section 122 to be downwardly inclined from the first side end to the second side end, and setting the second horizontal section 222 to be downwardly inclined from the third side end to the fourth side end, the condensed water can be guided to flow towards the fourth side end, i.e. the condensed water flows in one direction, which is convenient for collection, so that the condensed water is gathered at the fourth side end.

[0070] Specifically, the second side end faces the second horizontal section 222, and the third side end faces the first horizontal section 122.

[0071] Alternatively, the first horizontal section 122 is horizontally arranged from the first side end to the second side end; and / or, the second horizontal section 222 is horizontally arranged from the third side end to the fourth side end.

[0072] In the optional embodiment of the fan assembly, the second volute 200 further includes a mounting side edge 240 and a drain hole 250. The mounting side edge 240 is arranged at the fourth side end in a vertical extension; and the drain hole 250 is arranged at the bending connection between the mounting side edge 240 and the second horizontal section 222.

[0073] The installation side 240 is used to realize the connection with other components; by arranging the drainage hole 250 at the bending connection between the installation side 240 and the second horizontal section 222, the condensed water gathered at the fourth side end can be drained in time.

[0074] Further, the installation side 240 is also arranged to extend towards the direction of the second gap 211, that is, the installation side 240 is arranged around the second gap 211 and the second horizontal section 220, wherein the side towards the first volute 100 is not provided with the installation side 240. Correspondingly, the first volute 100 also comprises a fixed side arranged around the first gap 111 and the first horizontal section 120, and the side towards the second volute 200 is not provided with the fixed side. The fixed side and the installation side 240 are butted to facilitate the arrangement of the air outlet frame 600. Through the arrangement of the air outlet frame 600, the tightness of the connection between the first volute 100 and the second volute 200 can be improved, and the air outlet airflow can be dispersed. Further, the air outlet frame 600 is provided with a socket, and the air outlet guard net 300 can be inserted into the socket to realize fixation and installation.

[0075] Further, the condensed water flowing out through the drainage hole 250 flows to the receiving member of the fan assembly.

[0076] Alternatively, the drainage hole 250 can not be arranged.

[0077] In the optional embodiment of the fan assembly, the drainage hole 250 is arranged corresponding to the second recess 2221.

[0078] Through the corresponding arrangement of the drainage hole 250 and the second recess 2221, the condensed water at the lowest position can be drained to avoid the retention of the condensed water, thereby reducing the breeding of bacteria.

[0079] Alternatively, the drainage hole 250 and the second recess 2221 are arranged in a staggered manner.

[0080] In the optional embodiment of the fan assembly, a flow guide gap is formed between the second flow guide rib 230 and the installation side 240.

[0081] Through the flow guide gap formed between the second flow guide rib 230 and the installation side, the condensed water generated is helped to flow to the drainage hole 250. Specifically, the flow guide gap can make the condensed water near the fourth side end mix with each other to facilitate the collection and flow to the drainage hole 250.

[0082] Alternatively, the flow guide gap is not arranged.

[0083] In the optional embodiment of the fan assembly, the lower surface of the first horizontal section 120 is provided with an electric heating wire; and the lower surface of the second horizontal section 220 is provided with an electric heating wire.

[0084] In this way, when the condensed water is generated, the electric heating wire can be started to heat the condensed water so as to evaporate the condensed water as soon as possible.

[0085] Optionally, in order not to affect the temperature of the air flow of the mobile air conditioner, when the condensed water is generated, the mobile air conditioner is controlled to stop and the electric heating wire is started.

[0086] In the first horizontal section 120, the electric heating wire is embedded close to the lower surface, and in the second horizontal section 220, the electric heating wire is embedded close to the lower surface. Alternatively, a first accommodating groove is arranged on the lower surface of the first horizontal section 120, and the electric heating wire is arranged in the first accommodating groove; and a second accommodating groove is arranged on the lower surface of the second horizontal section 220, and the corresponding electric heating wire is arranged in the second accommodating groove.

[0087] In the optional embodiment of the fan assembly, the upper surface of the first horizontal section 122 is coated with a hydrophobic coating; and / or the upper surface of the second horizontal section 222 is coated with a hydrophobic coating.

[0088] Through the arrangement of the hydrophobic coating, the flowability of the condensed water can be improved.

[0089] Specifically, the hydrophobic coating includes a graphene coating. Since the graphene coating has strong hydrophobicity, the condensed water on the upper surface of the first horizontal section 122 and / or the second horizontal section 222 can flow quickly.

[0090] Alternatively, the hydrophobic coating includes a nano super-hydrophobic coating. The nano super-hydrophobic coating has very low surface tension, and liquid is difficult to stay on the surface of the nano super-hydrophobic coating, thereby facilitating the improvement of the flowability of the condensed water on the upper surface of the first horizontal section 122 and / or the second horizontal section 222, and reducing the adhesion of dust and other dirt on the upper surface of the first horizontal section 122 and / or the second horizontal section 222, thereby reducing the possibility of clogging of the drain hole 250.

[0091] Alternatively, the upper surface of the first horizontal section 122 and the upper surface of the second horizontal section 222 are not provided with the hydrophobic coating.

[0092] In combination Figures 7 to 9 As shown in the second aspect, the utility model provides a mobile air conditioner, which comprises the fan assembly.

[0093] In the case of using the above technical solutions, when the fan assembly is used as an indoor fan and the mobile air conditioner is operated in a refrigeration mode, the first guide ribs 130 on the upper surface of the first horizontal section 122 and the second guide ribs 230 arranged on the upper surface of the second horizontal section 222 can prevent the condensed water generated on the upper surfaces of the first horizontal section 122 and the second horizontal section 222 from flowing into the impeller space when the low-temperature airflow flows out of the fan assembly, thereby avoiding the problem of rust or short circuit of the components in the impeller space and improving safety. Specifically, on the one hand, the first guide ribs 130 close to the first arc-shaped section 121 and the second guide ribs 230 close to the second arc-shaped section 221 can block the condensed water; on the other hand, the first guide ribs 130 and the second guide ribs 230 extend in the first direction, which can guide the condensed water to flow from the first volute 100 to the second volute 200, thereby collecting the condensed water on the first horizontal section 122 and the second horizontal section 222.

[0094] Optionally, the mobile air conditioner comprises a shell 10, the interior of the shell 10 is divided into an indoor heat exchange cavity and an outdoor heat exchange cavity arranged above and below and independent of each other. The fan assembly as described above is arranged in the indoor heat exchange cavity. The top end of the shell 10 is provided with an indoor air outlet 11, and the indoor air outlet 11 is arranged corresponding to the fan outlet of the fan assembly. The interior of the shell 10 is provided with a partition plate 12, and the fan assembly is provided with the upper surface of the partition plate 12.

[0095] Alternatively, the interior of the shell 10 of the mobile air conditioner can also be divided into an indoor heat exchange cavity and an outdoor heat exchange cavity arranged left and right and independent of each other. The fan assembly as described above can be arranged in the indoor heat exchange cavity and / or the outdoor heat exchange cavity according to actual needs.

[0096] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A fan assembly comprising: The fan assembly comprises: a first volute, comprising at least a first arc-shaped cover and a first volute tongue, the first volute tongue comprising a first arc-shaped section and a first horizontal section, an upper surface of the first horizontal section being provided with a plurality of first flow guide ribs spaced along a length direction of the first horizontal section and extending in a first direction; a second volute, connected with the first volute in a corresponding manner and jointly defining a fan wheel space, the second volute comprising at least a second arc-shaped cover and a second volute tongue, the second volute tongue comprising a second arc-shaped section and a second horizontal section, an upper surface of the second horizontal section being provided with a plurality of second flow guide ribs spaced along a length direction of the second horizontal section and extending in the first direction; wherein the first direction is a direction from the first volute to the second volute.

2. The fan assembly according to claim 1, wherein: the first flow guide ribs and the second flow guide ribs are arranged in a corresponding manner, and a water passing gap is formed between the first flow guide ribs and the corresponding second flow guide ribs.

3. The fan assembly according to claim 1, wherein: the first flow guide ribs and the second flow guide ribs are arranged in a staggered manner.

4. The fan assembly according to claim 1, wherein: the first horizontal section is configured with a first recess extending in the first direction; and the second horizontal section is configured with a second recess corresponding to the first recess.

5. The fan assembly according to claim 4, wherein: the first horizontal section comprises a first side end and a second side end opposite to each other in the first direction, and a direction from the first side end to the second side end of the first horizontal section is downwardly inclined; the second horizontal section comprises a third side end and a fourth side end opposite to each other in the first direction, and a direction from the third side end to the fourth side end of the second horizontal section is downwardly inclined; wherein the second side end corresponds to the third side end.

6. The fan assembly of claim 5, wherein, The second volute further comprises: a mounting side edge, arranged at the fourth side end in a vertical direction; a drain hole, provided at a bending connection between the mounting side edge and the second horizontal section.

7. The fan assembly according to claim 6, wherein: the drain hole is provided corresponding to the second recess; and / or a flow guide gap is formed between the second flow guide ribs and the mounting side edge.

8. The fan assembly according to claim 1, wherein: a lower surface of the first horizontal section is provided with an electric heating wire; and a lower surface of the second horizontal section is provided with an electric heating wire.

9. The fan assembly according to any one of claims 1 to 8, wherein: an upper surface of the first horizontal section is coated with a hydrophobic coating; and / or an upper surface of the second horizontal section is coated with a hydrophobic coating.

10. A mobile air conditioner characterized by comprising: The fan assembly according to any one of claims 1 to 9.

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