Mobile Air Conditioner and Air Duct Fixing Plate

This application is a Continuation of PCT Application No. PCT/CN2024/128560 filed on Oct. 30, 2024; which claims Chinese Applications No. 202420873280.6, 202420873093.8, 202420872023.0, 202420873071.1, 202420873135.8, 202420873252.4, 202420872144.5, 202420873030.2, 202410504257.4, 202420873401.7, 202420873377.7, 202420872123.3, 202420872035.3, 202420873009.2, and 202420872970.X, filed on Apr. 24, 2024, Chinese Applications No. 202420994844.1 and 202410565118.2 filed on May 8, 2024, and PCT International Application No. PCT/CN2024/095022 filed on May 23, 2024, the entire contents of which are incorporated herein by reference.

The present disclosure relates to the field of air conditioning technologies, and in particular, to a mobile air conditioner and an air duct fixing plate.

A compressor, an exhaust fan, an evaporator, a condenser, and other mechanisms are integrated in a body of a mobile air conditioner to achieve an air conditioning function. Rollers are mounted on a body base to facilitate a user to freely move the body in different rooms or spaces.

The mobile air conditioner does not need complicated pipe mounting or wall drilling, can be put into use only by discharging hot air through an exhaust pipe, has high adaptability, and is particularly suitable for occasions such as a rental apartment, an interim office space, a warehouse, a trade show, and a camping tent.

The present disclosure provides a mobile air conditioner, comprising: a casing, an accommodation space being arranged in the casing; a compressor, the compressor being arranged at a bottom of the accommodation space; an outdoor air duct assembly, the outdoor air duct assembly being arranged in the accommodation space and located above the compressor; an indoor air duct assembly, the indoor air duct assembly being arranged in the accommodation space and located above the outdoor air duct assembly; an outdoor heat exchanger, arranged on a side of the outdoor air duct assembly in a horizontal direction, such that the outdoor air duct assembly conveys outdoor air to the outdoor heat exchanger for heat exchange; and an indoor heat exchanger, arranged on a side of the indoor air duct assembly in a horizontal direction, such that the indoor air duct assembly conveys indoor air to the indoor heat exchanger for heat exchange; wherein the compressor, the outdoor heat exchanger, and the indoor heat exchanger are connected end to end along a height direction of the casing to form a refrigerant circuit; the casing is provided with an air outlet and an air inlet, wherein the air outlet corresponds to an outlet of the indoor air duct assembly and a length direction of the air outlet is the height direction of the casing, so as to guide air outputted by the indoor air duct assembly out of the casing as a vertical airflow; the air inlet corresponds to the indoor heat exchanger, such that under the action of the indoor air duct assembly, indoor air enters the casing from the air inlet, undergoes heat exchange with the indoor heat exchanger, and is then sent out from the air outlet.

Some embodiments of the present disclosure are clearly and completely described below with reference to the accompanying drawings, and apparently, the described embodiments are not all but only a part of the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure shall fall within the protection scope of the present disclosure.

Generally, a compressor, a condenser, an evaporator, or the like, in a mobile air conditioner have a disordered distribution condition, so that the mobile air conditioner has the problems of a long heat exchange time and a low heat exchange efficiency. In addition, the mobile air conditioner has the problem of a low air outlet region, and generally blows to the hip and waist regions of a user, so that indoor air circulation is not smooth to influence a cooling effect. In order to solve the above problems, some embodiments of the present disclosure provide a mobile air conditioner. The mobile air conditionerbelongs to an air conditioner in which an indoor unit and an outdoor unit are integrated, and is movable. The mobile air conditioneris configured such that a compressor, a condenser, an evaporator, or the like, are arranged in one case, thereby achieving cooling and heating effects.

In some embodiments, as shown in, the mobile air conditionerincludes a casing. In some embodiments, as shown in, the mobile air conditionerfurther includes an accommodation space, the accommodation spacebeing located inside the casing. In some embodiments, as shown in, the mobile air conditionerfurther includes an outdoor air duct assembly, the outdoor air duct assemblybeing located in the accommodation space. In some embodiments, as shown inand, the mobile air conditionerfurther includes an indoor air duct assembly, the indoor air duct assemblybeing located in the accommodation space. In some embodiments, as shown in, the mobile air conditionerfurther includes an electric control box, the electric control boxbeing located in the accommodation space. It should be noted that the casingcan protect the outdoor air duct assembly, the indoor air duct assembly, and the electric control box. In some embodiments, the mobile air conditionerfurther includes a refrigerant circuit.

In some embodiments, as shown in, the refrigerant circuitincludes a compressor, and the compressoris a core component of the refrigerant circuit, and can suck low-temperature and low-pressure cooling gas and compress the cooling gas into high-temperature and high-pressure gas.

In some embodiments, as shown in, the refrigerant circuitincludes an outdoor heat exchanger, the outdoor heat exchangermay be a condenser, for example, and may cool the high-temperature and high-pressure gas compressed by the compressorinto high-pressure liquid, and a large amount of heat is released in the process, and is usually dissipated by the outdoor air duct assembly.

In some embodiments, as shown in, the refrigerant circuitfurther includes an indoor heat exchanger, so that the indoor heat exchangermay be used as an evaporator to evaporate the high-pressure liquid into low-temperature and low-pressure vapor, and in this process, heat of a surrounding environment may be absorbed, which is beneficial to improving the cooling effect of the mobile air conditioner. In this way, during cooling of the refrigerant circuit, heat transfer and energy conversion are performed among the compressor, the outdoor heat exchanger, and the indoor heat exchangerconnected end to end by refrigerant fluid, thereby achieving a cooling purpose.

In some embodiments, the outdoor air duct assemblyis arranged on one side of the outdoor heat exchanger, so that outdoor air can be delivered to the outdoor heat exchangerfor heat exchange, and thus, the outdoor air can be subjected to heat exchange through the outdoor heat exchanger, and pollutants such as dust and bacteria in the outdoor air can be filtered to improve quality of the outdoor air. Moreover, a load of an outdoor air-conditioning system can be reduced, so that energy consumption can be reduced to achieve the aims of energy conservation and emission reduction.

In some embodiments, the heat exchange by the outdoor heat exchangermay reduce influences of an outdoor temperature and humidity on an indoor environment, thereby improving reliability of the mobile air conditioner. For example, the indoor air duct assemblyis arranged on one side of the indoor heat exchanger, and can deliver indoor air to the indoor heat exchangerfor heat exchange, so that heat of the indoor air can be transferred to an outdoor environment, thereby achieving the effects of regulating an indoor temperature and purifying the indoor air.

In some embodiments, as shown inand, the electric control boxis connected to the compressor, the outdoor air duct assembly, and the indoor air duct assembly, so that the electric control boxis electrically connected to the compressor, the outdoor air duct assembly, and the indoor air duct assembly, and the electric control boxcan control on/off conditions of circuits of the compressor, the outdoor air duct assembly, and the indoor air duct assembly, thereby enabling the mobile air conditionerto run normally. For example, as shown inand, in the accommodation space, the compressorand the electric control boxare spaced apart in a horizontal direction of the accommodation space, which is beneficial to reducing interference between the compressorand the electric control box.

In some embodiments, as shown inand, the outdoor heat exchanger, the indoor heat exchanger, the outdoor air duct assembly, and the indoor air duct assemblyare arranged above the compressorand the electric control box, so that by reasonably utilizing a space inside the mobile air conditioner, the compressorand the electric control boxare spaced apart from the outdoor heat exchanger, the indoor heat exchanger, the outdoor air duct assembly, and the indoor air duct assemblyrespectively, so as to form independent modules, which can not only facilitate maintenance and replacement, but also improve the heat exchange efficiency of the mobile air conditioner.

In some embodiments, as shown inand, the outdoor heat exchangerand the outdoor air duct assemblyare arranged above the compressorand the electric control box, the outdoor heat exchangerand the outdoor air duct assemblyare arranged in the horizontal direction of the accommodation space, the indoor heat exchangerand the indoor air duct assemblyare arranged above the outdoor heat exchangerand the outdoor air duct assembly, and the indoor heat exchangerand the indoor air duct assemblyare arranged in the horizontal direction of the accommodation space. For example, the arrangement of the outdoor heat exchangerand the outdoor air duct assemblyin the horizontal direction of the accommodation spacemay increase an air supply speed of the outdoor heat exchanger, thereby improving a heat exchange efficiency of the outdoor heat exchanger. Furthermore, the arrangement of the outdoor heat exchangerand the outdoor air duct assemblyin the horizontal direction of the accommodation spacemay reduce a distance between the outdoor heat exchangerand the outdoor air duct assembly, and also increase a height of the mobile air conditioner, thereby improving stability of the mobile air conditionerduring working. For another example, the indoor heat exchangerand the indoor air duct assemblyare arranged above the outdoor heat exchangerand the outdoor air duct assembly, so that interference may be reduced and a heat exchange distance may be shortened.

It should be noted that, the indoor heat exchangerand the indoor air duct assemblyare arranged in the horizontal direction of the accommodation space, and similarly, the indoor air duct assemblycan increase an air supply speed of the indoor heat exchangerto improve a heat exchange efficiency of the indoor heat exchanger, a distance between the indoor heat exchangerand the indoor air duct assemblycan be reduced, and the height of the mobile air conditionercan be increased to cause an air supply region of an air outletof the indoor air duct assemblyto be higher than that of a traditional mobile air conditioner, which may better facilitate the user to perceive air supply, and can also raise a gravity center of the mobile air conditionerto ensure that the mobile air conditioneris more stable in the working process. In this way, the compressorand the electric control boxare located at a bottom layer of the mobile air conditioner, the outdoor heat exchangerand the outdoor air duct assemblyare located in the middle, i.e., at a second layer, of the mobile air conditioner, and the indoor heat exchangerand the indoor air duct assemblyare located at an upper layer, i.e., a third layer, of the mobile air conditioner, so that the multilayer distribution and arrangement inside the mobile air conditionercan be realized, the advantage of a hierarchical design is achieved, and a reduction of a width and a thickness of the mobile air conditionercan be facilitated. In addition, an air inlet ductand an air outlet ductof the mobile air conditionerare located behind the indoor heat exchanger, which not only can reasonably utilize the space, but also can improve the heat exchange efficiency of the indoor heat exchanger.

According to some embodiments of the present disclosure, as shown in, the mobile air conditionerfurther includes a first water receiving tray, the outdoor heat exchangerbeing arranged on the first water receiving tray.

According to some embodiments of the present disclosure, as shown inand, the mobile air conditionerfurther includes a support plate, the support platebeing arranged in the accommodation space, the support platebeing located between the electric control boxand the compressor, the support plateextending in an up-down direction, and the support platebeing supported between the first water receiving trayand the bottom of the casing. For example, the outdoor heat exchangeris arranged on the first water receiving tray, so that condensed water generated by heat exchange in the outdoor heat exchangeror the indoor heat exchangercan flow onto the first water receiving tray, thereby preventing the condensed water generated in the outdoor heat exchangerfrom flowing out of the casingof the mobile air conditioner. It should be noted that the first water receiving trayis arranged to store the condensed water, so as to avoid that the condensed water generated by the outdoor heat exchangeroverflows and affects stability of an internal circuit of the mobile air conditioner. For another example, the support plateis located between the electric control boxand the compressor, and can isolate the electric control boxfrom the compressor, so as to ensure safety and stability of circuit transmission of the electric control box.

It should be noted that the support plateis supported between the first water receiving trayand the bottom of the casing, so that the support platecan support the first water receiving trayand the bottom of the casing, thereby increasing strength and stability of the first water receiving trayand also improving strength of the bottom of the casing.

In some embodiments, as shown inand, the support plateincludes a main plate, the main platebeing arranged between the electric control boxand the compressor, so as to facilitate an increase of structural stability of the electric control boxand the compressoron a chassis.

In some embodiments, as shown inand, the support platefurther includes first side plates, the first side platesare arranged at two ends of the main platein a horizontal direction, the first side platesare bent relative to the main plate, and at least one of the main plateand the first side platesis supported between the first water receiving trayand the chassis, so that a support area of the bottoms of the support plateand the first water receiving traycan be increased to prevent the first water receiving trayfrom being inclined relative to a horizontal plane, structural stability of the first water receiving traycan be improved to effectively prevent water in the first water receiving trayfrom being spilled out, and the main plateand the first side platescan be defined around the compressorto prevent the compressorfrom shaking, which is beneficial to ensuring safety of the compressorin the moving process of the mobile air conditioner.

It should be noted that, as shown in, two first side platesare provided, the two first side platesare arranged at the two ends of the main platein the horizontal direction respectively, the two first side platesare bent and extend towards the compressorrelative to the main plate, and the two first side platesare correspondingly arranged at two sides of the compressorrespectively. For example, each of the two ends of the main platein the horizontal direction is provided with one first side plate, so that on the one hand, the support platecan be arranged around a circumference of the compressorto improve reliability of the function of protecting the compressorby the support plate, and on the other hand, a bottom surface of the first water receiving traycan be limited to prevent the first water receiving trayfrom being inclined relative to the horizontal plane during movement of the mobile air conditioner. For another example, the two first side platesare bent and extend towards the compressorrelative to the main plate, and the two first side platesare correspondingly arranged at the two sides of the compressorrespectively, so that not only the compressorcan be protected, but also structural strength of the support platecan be enhanced, and structural reliability of the support platecan be improved.

In some embodiments, as shown inand, a side of the electric control boxtowards the compressoris arranged to be open, the main platecovers the open side of the electric control box, the main plateis provided with a heat dissipation grille, and the heat dissipation grillecorresponds to heat sinkin the electric control box. It should be noted that the electric control boxand the compressorare arranged on the chassis, the side of the electric control boxtowards the compressoris arranged to be open, and since the main plateis arranged between the electric control boxand the compressor, the main platecan cover the open side of the electric control boxtowards the compressor, so that a number of components of the electric control boxcan be reduced to facilitate shortening of a distance between the electric control boxand the compressor, and further facilitate an improvement of structural compactness of the mobile air conditioner, and the main platecan separate the electric control boxfrom the compressor.

It should be noted that the heat dissipation grilleis arranged on the main plate, so that heat of the electric control boxis dissipated. When the main platecovers the open side of the electric control boxtowards the compressor, the heat dissipation grilleon the main platecorresponds to the heat sinkin the electric control box, so that the heat generated by working of the electric control boxcan be transferred from the heat sinkto the heat dissipation grilleand then to air, and thus, the electric control boxcan dissipate heat quickly, and a service life of the electric control boxcan be prolonged.

In some embodiments, as shown in,, and, the mobile air conditionerfurther includes an outdoor air duct member, the outdoor air duct memberis arranged above the compressorand spaced apart from the outdoor heat exchangerin the horizontal direction, and the outdoor air duct memberhas an outdoor fanarranged therein and is communicated with the outdoor heat exchangercorrespondingly. For example, the outdoor air duct memberand the outdoor heat exchangerare both arranged above the compressor, which facilitates the arrangement of the accommodation spaceand improves the structural compactness of the mobile air conditioner. In addition, the outdoor air duct memberand the outdoor heat exchangerare spaced apart in the horizontal direction and correspondingly communicated, so that the outdoor air duct memberand the outdoor heat exchangercan be ensured to be arranged independently, and heat exchange between air in the outdoor air duct memberand the outdoor heat exchangercan be facilitated to improve a working efficiency of the outdoor heat exchanger. For example, the outdoor air duct membermay define a flow direction and path of air in the outdoor air duct member, and the outdoor fanis arranged inside the outdoor air duct memberand may provide powered flow for the air in the outdoor air duct member.

In the embodiment of the present disclosure, the support plateand at least a part of the outdoor air duct memberare an integrally formed structural member, which can not only facilitate production of the outdoor air duct memberand the support plateto facilitate an improvement of production convenience of the mobile air conditioner, but also improve the structural compactness of the mobile air conditionerto facilitate an improvement of structural strength of the mobile air conditioner.

In some embodiments, as shown inand, the outdoor air duct memberincludes a first air duct plate. The outdoor air duct memberfurther includes a second air duct plate, and the first air duct plateand the second air duct plateare oppositely arranged and connected to form an air channel for air flowing in the outdoor air duct member. The second air duct plateis located between the first air duct plateand the outdoor heat exchanger, and the second air duct plateand the support plateare the integrally formed structural member, so that the second air duct plateand the support platecan be integrally made to improve production convenience of the second air duct plateand the support plate, and to facilitate positioning of the support plateduring assembly of the second air duct plateand the first air duct plate, thereby improving assembly convenience of the mobile air conditionerto facilitate an improvement of a production efficiency of the mobile air conditioner.

In some embodiments, as shown in,,, and, the mobile air conditionerfurther includes an indoor air duct member, and the indoor air duct membermay define a direction and path of flowing of air in the indoor air duct member. The indoor heat exchangerand the indoor air duct memberare arranged above the outdoor heat exchanger, which may not only facilitate an improvement of structural compactness in the casing, but also ensure that the indoor heat exchangeris arranged above a second water receiving tray. When a refrigerant absorbs heat and evaporates in the indoor heat exchanger, a surface temperature of the indoor heat exchangeris lowered, and water vapor in the air is cooled and condensed into water on a surface of the indoor heat exchanger, so that the condensed water on the surface of the indoor heat exchangercan fall into the second water receiving trayat a lower position, and the condensed water is discharged through a drain pipe on the second water receiving tray. In this way, one second water receiving traycan be used to receive the condensed water on the outdoor heat exchangerand the indoor heat exchanger, so as to improve the structural compactness in the casing. It should be noted that the indoor air duct memberand the indoor heat exchangerare spaced apart in the horizontal direction, and the indoor air duct memberis correspondingly communicated with the indoor heat exchanger, so that the indoor heat exchangerand the indoor air duct membercan be arranged independently, heat exchange between the air in the indoor air duct memberand the indoor heat exchangercan be facilitated, and then, a working efficiency of the indoor heat exchangercan be improved.

In some embodiments, as shown in, the mobile air conditionerincludes at least one support beam. For example, the at least one support beamincludes one support beam. The support beamextends in the up-down direction, and both ends of the support beamare connected to the chassisand the indoor air duct memberrespectively, so that the support beamcan support the chassisand the indoor air duct member, which facilitates an improvement of structural stability of the indoor air duct memberin the mobile air conditioner.

In some embodiments, as shown in,, and, the support beamincludes a first support section. The first support sectionextends in the up-down direction, and a lower end of the first support sectionis connected to the chassis, so that the support beamcan be fixed to the chassisto reliably support the indoor air duct member.

In some embodiments, as shown in,, and, the support beamfurther includes a second support section, the second support sectionis connected to an upper end of the first support sectionto fix the second support sectionon the first support section, and the second support sectionis connected to the indoor air duct member, so that the second support sectioncan reliably support the indoor air duct member, the indoor air duct membercan be prevented from shaking in the mobile air conditioner, the structural stability of the indoor air duct membercan be improved, and an improvement of structural reliability of the mobile air conditionercan be facilitated.

For another example, the second support sectionis bent relative to the first support section, and the second support sectionextends in the horizontal direction, so that the second support sectioncan be lengthened in the horizontal direction to increase a contact area between the second support sectionand the indoor air duct member, thereby increasing connection strength of the second support sectionand the indoor air duct member, and improving the structural stability of the indoor air duct member.

In some embodiments, as shown in,, andtogether, the support beamis provided with a first positioning portion, the indoor air duct memberis provided with a second positioning portion, one of the first positioning portionand the second positioning portionis a positioning protrusion, the other is a positioning hole, and the positioning protrusion fits the positioning hole in a positioning mode. For example, the support beamand the indoor air duct memberare quickly positioned by the first positioning portionand the second positioning portion, which may facilitate mounting of the support beamand the indoor air duct member, facilitate an improvement of assembly convenience of the mobile air conditioner, shorten a mounting time, and improve a working efficiency.

It should be noted that, after the positioning fitting between the first positioning portionand the second positioning portion, a position of the support beamrelative to the indoor air duct membercan be determined, and thus, a connection between the chassisand the bottom of the support beamcan be facilitated, so that a frame structure of the mobile air conditionercan be determined conveniently in an assembling process of the mobile air conditioner, which is beneficial to improving an assembling efficiency of the mobile air conditioner.

For another example, the positioning fitting between the first positioning portionand the second positioning portionis actually positioning fitting between the positioning hole and the positioning protrusion, so that the positioning hole and the positioning protrusion are not only simple in structure and convenient to process, but also can realize quick positioning, so as to improve a positioning efficiency and the assembling efficiency of the mobile air conditioner.

In some embodiments, as shown inand, the at least one support beamincludes two support beams. The two support beamsare arranged at both sides of the indoor air duct memberrespectively to support both sides of the indoor air duct member. For example, the indoor air duct membermay be fixed above the outdoor heat exchangerto ensure the structural stability of the indoor air duct memberin the mobile air conditioner, thereby improving working stability of the mobile air conditioner.

In some embodiments, as shown in,, and, the casingincludes a main housing. The casingfurther includes the chassis. The chassisis arranged at the bottom of the main housing, and the chassiscan have a support effect.

In some embodiments, as shown in, the mobile air conditionerfurther includes running wheels. The running wheelsare arranged at the bottom of the chassis. It can be understood that, during use of the mobile air conditioner, the running wheelsare located between the chassisand the ground, so that a bottom space of the chassiscan be fully utilized, arrangement positions of the running wheelsare optimized, and an overall occupied space of the mobile air conditioneris reduced. In order to avoid the problem that when the mobile air conditionercontacts the ground only by the running wheels, stability of the mobile air conditioneris affected, and the mobile air conditioner is prone to rollover when being stressed, in some embodiments, as shown in, the chassisis provided with a slot. The mobile air conditionermay further include a leg. By inserting one part of the leginto the slotand positioning the other part of the legoutside the chassis, the legcan contact the ground for supporting at a circumferential outer side of the mobile air conditionerwhen the mobile air conditioneris inclined, and a support force is transmitted to the chassisthrough the leg, thereby supporting the whole mobile air conditioner. In this way, the legcan reduce the rollover of the mobile air conditioner, improve the stability of the mobile air conditioner, and prolong a service life of the mobile air conditioner.

In some embodiments, as shown inand, a first engaging portionis arranged in the slot, a second engaging portionis arranged on the leg, and the first engaging portionis engaged with and fits the second engaging portion. Therefore, detachable fitting between the legand the chassiscan be realized, and the user can selectively provide the legon the chassisor detach the legfrom the chassisaccording to actual requirements, so as to meet use requirements of the user in different scenarios.

For example, when the user normally uses the mobile air conditioner, the legmay be arranged on the chassisto prevent the rollover of the mobile air conditioner. When the user moves the mobile air conditioner, the legcan be detached, so that a size of the mobile air conditionerin the horizontal direction is reduced, and trafficability of the mobile air conditioneris improved. For another example, the slotmay be arranged in a side wall of the chassis, and the first engaging portionis located on a bottom wall of the chassis, so that the legcan be dismounted and mounted from a circumferential side to facilitate the user to dismount and mount the leg, and the legcan support the mobile air conditionerfrom the circumferential outer side, thereby improving reliability of supporting the mobile air conditionerby the leg.

In some embodiments, as shown inandtogether, the first engaging portionis an engaging hole, the second engaging portionis a buckle, the buckle is located on an upper side of the engaging hole, and the buckle can elastically get close to or away from the chassis, so that the buckle can be selectively engaged with and fit the engaging hole. It can be understood that the buckle can be engaged with and fit the engaging hole only by inserting the buckle into the engaging hole, thereby realizing the engaging fitting between the first engaging portionand the second engaging portion. On the one hand, a speed and accuracy of the engaging fitting between the first engaging portionand the second engaging portioncan be improved, and on the other hand, stability of the engaging fitting between the first engaging portionand the second engaging portioncan be improved.

For example, by providing the engaging hole in a lower side of the slotand also providing the buckle on a lower side of the leg, the buckle can be first inserted into the slotto be located on an upper side of the engaging hole. On the one hand, the buckle can elastically get away from the chassisto realize the engaging fitting between the buckle and the engaging hole, and on the other hand, the user can conveniently apply a force to the buckle, so that the buckle can elastically get close to the chassisto release the engaging fitting between the buckle and the engaging hole.

In some embodiments, as shown in,, and, the legincludes a leg body. The leg bodyis inserted into the slot. The legfurther includes an engaging sheet. The leg bodyis provided with a first escape groove, the engaging sheetis arranged in the first escape groove, one end of the engaging sheetis elastically connected to the leg body, and the buckle is arranged on a side of the engaging sheetclose to the engaging hole.

Taking the arrangement of the legon the chassisas an example, it is only required to insert the leg bodyinto the slot, and in the process of insertion, the buckle is limited by the slotto drive the engaging sheetto elastically deform, and the buckle gets away from the chassis. With continuous insertion of the leg body, the buckle is moved above the engaging hole, a limitation on the buckle by the slotdisappears, and the engaging sheetreleases the elastic deformation and drives the buckle to get away from the chassis, so as to realize the engaging fitting between the buckle and the engaging hole.

Taking dismounting of the legfrom the chassisas an example, a force can be applied to the buckle to cause the buckle to drive the engaging sheetto elastically deform, and the buckle approaches the chassisand exits from the engaging hole, thereby conveniently moving the legout of the slotto release the engaging fitting between the buckle and the engaging hole. In this way, a structural design of the legcan be optimized, the user can conveniently dismount and mount the leg, structural reliability of the legcan be improved, the legcan be guaranteed to be dismounted and mounted multiple times without damage, and a service life of the legis prolonged.

It should be noted that, as shown inandtogether, a first guide surfaceis arranged on the buckle, and the first guide surfaceis in selectively guiding fit with a side wall of the chassiscorresponding to the engaging hole. For example, the first guide surfaceis located at an end of the buckle close to the engaging sheetand elastically connected to the leg body, so that when the leg bodyis inserted into the slot, the first guide surfacecan be in guiding fit with the side wall of the chassiscorresponding to the engaging hole, which can facilitate gradual insertion of the leg bodyinto the slot, thereby improving the assembling efficiency. For another example, the first guide surfaceis a guide inclined surface, and is not particularly limited herein.

In some embodiments, as shown inand, the other end of the engaging sheetis provided with a limiting protrusion, the limiting protrusionis spaced apart from the buckle, and the limiting protrusionis in limiting fit with the side wall of the chassis. For example, by providing the limiting protrusionspaced apart from the buckle at the other end of the engaging sheet, after the leg bodyis inserted into the slotto cause the buckle to be engaged with and fit the engaging hole, the engaging sheetdrives the limiting protrusionaway from the chassis, and a side wall of the limiting protrusioncan be in limiting fit with the side wall of the chassis. Thus, the continuous insertion of the leg bodyrelative to the slotcan be limited, the user is reminded that a correct assembly position is reached, failure of the engaging fitting between the buckle and the engaging hole caused by over-position assembly is avoided, and assembly reliability can be improved. It should be noted that, since the limiting protrusionis closer to the outer side than the buckle, when the legis detached from the chassis, the user can cancel the engaging fitting between the buckle and the engaging hole by applying a force to the limiting protrusion, which facilitates an operation of the user.

In some embodiments, as shown inandtogether, an end of the limiting protrusionclose to the buckle is provided with a second guide surface, and the second guide surfaceis in selectively guiding fit with the side wall of the chassis. It should be noted that, by providing the second guide surfaceat the end of the limiting protrusionclose to the buckle, after the leg bodyis inserted into the slotand is at the correct assembly position, the second guide surfacecan be in guiding fit with the side wall of the chassis, so as to prevent the side wall of the chassiscorresponding to the engaging hole from limiting rebounding of the limiting protrusionand even the engaging sheet, thereby ensuring correct assembly of the leg. For example, the second guide surfacemay be a guide arc surface, so that while it is ensured that the second guide surfaceplays a guiding role, a sharp structure of the limiting protrusionmay be avoided, and the user may cancel the engaging fitting between the buckle and the engaging hole by applying the force to the limiting protrusion, which is beneficial to avoiding the situation that the hand of the user is uncomfortable and even scratched.

In some embodiments, as shown intotogether, the legincludes a first leg portion, the first leg portionis inserted into the slot, the first leg portionextends in the horizontal direction, and an end portion of the first leg portionaway from the slotat least partially extends out of the slot. The legfurther includes a second leg portion, the second leg portionis arranged at the end portion of the first leg portionaway from the slot, the second leg portionis arranged to extend downwards relative to the first leg portion, and a lower end of the second leg portionis configured to contact the ground for supporting when the mobile air conditioneris inclined. In this way, a structural design of the legcan be optimized to cause the first leg portionto fit a distance of the mobile air conditionerin the horizontal direction and the second leg portionto fit a distance between the chassisand the ground. Therefore, when the mobile air conditioneris inclined, the lower end of the second leg portionmay contact the ground for supporting, and a force may be sequentially transmitted to the chassisthrough the second leg portionand the first leg portion, so that the whole mobile air conditionermay be supported to prevent the rollover of the mobile air conditioner.