Mobile air conditioner

Abstract

The utility model relates to air conditioning technical field, concretely provides a mobile air conditioner, aims at solving the problem of straight blowing user of air outlet and poor indoor air circulation efficiency. For this purpose, the mobile air conditioner of the utility model includes: the casing, the inside is limited to have indoor heat exchange cavity, and the top cover plate of casing is equipped with the indoor air outlet of indoor heat exchange cavity, at least one indoor heat exchanger is arranged in indoor heat exchange cavity, and indoor heat exchanger is structured as the multi -section heat exchanger of bended connection, and the side plate of casing is equipped with indoor air inlet all on corresponding indoor heat exchanger, and the top of indoor heat exchanger is set up and is in abutment with casing and is equipped with the vent of air duct cover plate, and the lower plate surface of air duct cover plate is set up and is arranged along the circumference of indoor heat exchanger, and indoor fan is arranged between vent and indoor air outlet, and indoor fan is axial flow fan. The application can make the air flow of air outlet to spray and flow out upwards, then disperses and radiates to the four directions, and the circulation efficiency of indoor air is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically providing a portable air conditioner. Background Technology

[0002] Currently, both wall-mounted and floor-standing air conditioners need to be fixed in a limited location and cannot be moved. Therefore, portable air conditioners have emerged. A portable air conditioner mainly consists of a casing, an indoor airflow assembly, and an outdoor airflow assembly. Both the indoor and outdoor airflow assemblies are housed within the casing. The casing has indoor air inlets and outlets corresponding to the indoor airflow assembly, and similarly, outdoor air inlets and outlets corresponding to the outdoor airflow assembly. Due to their small size, portable air conditioners can be moved to different locations or rooms to regulate the air temperature in those locations or rooms.

[0003] In portable air conditioners using related technologies, the evaporator is a plate-like structure arranged vertically. To optimize airflow, the evaporator is positioned close to the back panel, where an air inlet is located. Simultaneously, an air outlet is located on the front panel opposite the back panel. In this way, air flows sequentially through the air inlet, evaporator, and air outlet, thus regulating the indoor air temperature. However, front-side air outlets not only tend to blow directly onto customers, but also have a small airflow range, resulting in poor indoor air circulation efficiency and reduced comfort. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problems of portable air conditioners blowing air directly at users and poor indoor air circulation efficiency.

[0005] This utility model provides a portable air conditioner, comprising: a casing, which internally defines an indoor heat exchange chamber, and the top cover of the casing is provided with an indoor air outlet of the indoor heat exchange chamber; at least one indoor heat exchanger disposed in the indoor heat exchange chamber, the indoor heat exchanger being constructed as a multi-segment heat exchanger with bent connections; wherein, each side plate of the casing corresponding to the indoor heat exchanger is provided with an indoor air inlet; a duct cover plate disposed at the top of the indoor heat exchanger and abutting against the casing, the duct cover plate having a ventilation opening; a limiting rib disposed on the lower surface of the duct cover plate, the limiting rib being arranged circumferentially along the indoor heat exchanger, and the limiting rib abutting against the top of the windward side and / or the top of the leeward side of the indoor heat exchanger; and an indoor fan disposed between the ventilation opening and the indoor air outlet, the indoor fan being an axial flow fan.

[0006] With the above technical solution, the indoor heat exchanger is a multi-section heat exchanger with bent connections, and an indoor air inlet is provided on the corresponding side plate of the casing. When the axial fan is running, indoor air can be drawn into the indoor heat exchange chamber through the indoor air inlet; this can increase the air intake volume of the portable air conditioner and improve heat exchange efficiency. By setting a duct cover plate at the top of the indoor heat exchanger that abuts against the casing, and setting a limiting rib below the duct cover plate that abuts against the indoor heat exchanger, a relatively sealed space can be formed below the duct cover plate, preventing air from bypassing the indoor heat exchanger and flowing directly to the air outlet after entering the indoor heat exchange chamber, thus improving heat exchange efficiency. At the same time, the duct cover plate has ventilation holes, which, in conjunction with the axial fan set above the indoor heat exchanger, can optimize the airflow path and concentrate the airflow towards the air outlet. The air that has been heated by the indoor heat exchanger is sprayed upwards into the indoor environment, and then dispersed and radiated in all directions, making the air supply range wider and helping to improve the indoor air circulation efficiency. In addition, it can avoid direct airflow to users and improve the comfort of the airflow.

[0007] In an optional embodiment of the above-described portable air conditioner, an extended side is provided circumferentially around the duct cover; the extended side extends toward the top cover; and / or, the extended side extends away from the top cover.

[0008] By extending the sides of the duct cover in the circumference, the structural rigidity can be improved and the stress can be distributed to reduce deformation. At the same time, the contact area between the duct cover and the housing can be increased, thereby reducing the friction between the housing and the duct cover and reducing abnormal noise caused by vibration.

[0009] In the optional implementation of the above-mentioned portable air conditioner, a plurality of spaced slots are provided around the circumference of the air duct cover; a plurality of limiting blocks are provided on the inner side of the housing, and the limiting blocks are configured to be locked in the slots.

[0010] The combination of the slot and the limiting block can improve the stability of the duct cover after installation, and prevent tilting or shaking caused by vibration during the operation of the portable air conditioner.

[0011] In an optional embodiment of the above-mentioned portable air conditioner, the indoor heat exchanger includes a heat exchange body and end plates disposed on both sides of the heat exchange body; one of the end plates and the limiting ribs is provided with a limiting groove, and the end plate or the limiting rib is correspondingly engaged in the limiting groove.

[0012] By using the limiting groove in conjunction with the end plate / limiting rib, the stability of the connection between the indoor heat exchanger and the duct cover can be improved; at the same time, the installation position of the duct cover can be limited, thereby improving installation efficiency.

[0013] In an optional embodiment of the above-mentioned portable air conditioner, a stop rib is provided on the inner wall surface of the housing, and the stop rib is arranged around the circumference of the housing; the upper surface of the stop rib is detachably connected to the lower surface of the air duct cover.

[0014] By combining the baffle ribs with the duct cover, the tilting of the duct cover's perimeter can be prevented. At the same time, the sealing of the space under the duct cover can be improved, preventing air entering the indoor heat exchange chamber from leaking through the gap between the duct cover and the casing, ensuring heat exchange efficiency, and helping to reduce noise.

[0015] In an optional embodiment of the aforementioned portable air conditioner, a sealing ring is arranged around the outer periphery of the duct cover.

[0016] By setting a sealing ring, the airtightness of the space under the duct cover is improved, preventing air entering the indoor heat exchange chamber from leaking through the gap between the duct cover and the casing; and it can also prevent noise generation caused by the collision between the duct cover and the casing due to vibration during the operation of the portable air conditioner.

[0017] In the optional implementation of the above-mentioned portable air conditioner, there are two indoor heat exchangers arranged sequentially, with each indoor heat exchanger comprising two sections; or, there is one indoor heat exchanger comprising three sections.

[0018] This arrangement increases the heat exchange area, thereby improving the heat exchange efficiency of the indoor heat exchanger.

[0019] In the optional implementation of the above-mentioned portable air conditioner, it further includes: a diversion duct, which connects the indoor air outlet and the ventilation opening, and the diversion duct is snapped into the duct cover; wherein, the shape of one end of the diversion duct matches the shape of the indoor air outlet, and the shape of the other end of the diversion duct matches the shape of the ventilation opening.

[0020] The design of the air diversion duct can optimize the airflow path between the vent and the indoor air outlet, allowing air to be delivered to the indoor air outlet in a more concentrated manner. This avoids the reduction in cooling or heating efficiency caused by airflow dispersion, reduces energy loss, and improves air outlet efficiency.

[0021] In an optional embodiment of the above-mentioned portable air conditioner, a mating side extending toward the top cover plate is provided around the vent, and the inner wall of the mating side engages with the outer wall of the air duct; a plurality of latches are provided at intervals on the mating side, and a plurality of buckles are provided on the outer wall of the air duct, and the buckles are configured to engage with the latches.

[0022] By using bayonet and buckle settings, a stable connection between the air duct and the duct cover can be achieved with a simple structure, which is convenient for disassembly and assembly and can also improve the relative stability between the duct cover and the air duct.

[0023] In an optional embodiment of the above-mentioned portable air conditioner, the lower end of the air duct is provided with a clearance groove, and at least part of the top of the indoor heat exchanger is stuck in the clearance groove.

[0024] The inclusion of clearance slots prevents interference between the indoor heat exchanger and the air duct, thus preventing collisions caused by vibration or assembly errors during operation and avoiding structural damage. Furthermore, the clearance slots provide a pre-positioning function for the air duct installation, allowing direct alignment of the clearance slot with the heat exchanger during installation, reducing adjustment time and improving installation efficiency. Attached Figure Description

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

[0026] Figure 1 This is an exploded schematic diagram of a portable air conditioner provided by this utility model;

[0027] Figure 2 This is an exploded schematic diagram of another portable air conditioner provided by this utility model;

[0028] Figure 3 This is a structural schematic diagram of a portable air conditioner provided by this utility model, wherein part of the casing has been removed;

[0029] Figure 4 This is a structural schematic diagram of an air duct cover provided by this utility model;

[0030] Figure 5 This is a structural schematic diagram of another air duct cover provided by this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of a front cover provided by this utility model;

[0032] Figure 7 This is an exploded view of an end plate and a duct cover provided by this utility model;

[0033] Figure 8 This is an exploded view of another end plate and duct cover provided by this utility model;

[0034] Figure 9 This is a schematic diagram of another front cover provided by this utility model;

[0035] Figure 10 This is a schematic diagram of another front cover provided by this utility model;

[0036] Figure 11 This is a schematic diagram of the structure of the indoor heat exchanger, duct cover, and air duct provided by this utility model;

[0037] Figure 12 This is a structural schematic diagram of the indoor heat exchanger, duct cover, and air duct provided by this utility model.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10. Casing; 101. Indoor heat exchange chamber; 102. Baffle rib; 11. Top cover; 110. Indoor air outlet; 120. Indoor air inlet; 131. Front cover; 132. Rear cover;

[0040] 21. Indoor heat exchanger; 211. Heat exchanger body; 212. End plate;

[0041] 30. Air duct cover; 301. Ventilation opening; 302. Airflow duct; 3021. Clearance groove; 303. Matching side; 31. Limiting rib; 32. Extending side; 33. Slot; 331. Limiting block; 34. Limiting groove;

[0042] 41. Indoor fan;

[0043] 51. Checkpoint; 52. Check block. Detailed Implementation

[0044] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. In the following description, for ease of explanation, numerous details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other instances, well-known structures and apparatuses may be simplified for the sake of simplicity.

[0045] It should be noted that in the description of this application, the terms "center," "upper," "lower," "vertical," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] Combination Figures 1 to 12 As shown, this utility model provides a portable air conditioner, including a housing 10, an indoor heat exchanger 21, an air duct cover 30, and an indoor fan 41.

[0048] The casing 10 defines an indoor heat exchange chamber 101, and the top cover 11 of the casing 10 has an indoor air outlet 110 for the indoor heat exchange chamber 101. At least one indoor heat exchanger 21 is disposed in the indoor heat exchange chamber 101, and the indoor heat exchanger 21 is constructed as a multi-segment heat exchanger with bent connections. Indoor air inlets 120 are provided on the side plates of the casing 10 corresponding to the indoor heat exchangers 21. A duct cover 30 is disposed at the top of the indoor heat exchanger 21 and abuts against the casing 10, and the duct cover 30 has a ventilation opening 301. A limiting rib 31 is disposed on the lower surface of the duct cover 30, and the limiting rib 31 is arranged circumferentially along the indoor heat exchanger 21, and the limiting rib 31 abuts against the top of the indoor heat exchanger 21 on the windward side and / or the top of the indoor heat exchanger 21 on the leeward side. An indoor fan 41 is disposed between the ventilation opening 301 and the indoor air outlet 110, and the indoor fan 41 is an axial flow fan.

[0049] Optionally, the interior of the casing 10 defines an indoor heat exchange chamber 101, within which an indoor heat exchanger 21 and an indoor fan 41 are installed. Further, an indoor air outlet 110 is provided on the top cover plate 11 of the casing 10, and the indoor air outlet 110 is directly connected to the indoor heat exchange chamber 101. To ensure airflow within the indoor heat exchange chamber 101, an indoor air inlet 120 is provided on the side plate of the casing 10 corresponding to the indoor heat exchanger 21. By providing the indoor air outlet 110 on the top cover plate 11, the airflow can be directed upwards to avoid direct airflow onto the user, thus improving the comfort of the airflow.

[0050] Optionally, to reduce the size of the portable air conditioner, the indoor fan 41 is arranged as an axial flow fan. Furthermore, the indoor fan 41 is arranged close to the indoor air outlet 110. In this way, the airflow can be more concentrated and directed towards the indoor air outlet 110, then sprayed upwards into the indoor environment, and then dispersed and radiated in all directions.

[0051] Optionally, the top of the indoor heat exchanger 21 is provided with a duct cover 30, which abuts against the inner wall of the casing 10. This creates a relatively sealed space below the duct cover 30, ensuring that air entering the indoor heat exchange chamber 101 flows through the indoor heat exchanger 21 and then to the indoor air outlet 110. The duct cover 30 has a vent 301, and an indoor fan 41 is positioned between the vent 301 and the indoor air outlet 110. An air outlet channel is formed between the duct cover 30 and the top cover 11. Thus, the indoor fan 41 positioned between them guides the air that has exchanged heat with the indoor heat exchanger 21 through the vent 301 to the indoor air outlet 110, thereby concentrating the airflow towards the indoor air outlet 110, increasing the airflow speed, and improving airflow efficiency.

[0052] Optionally, the lower surface of the duct cover 30 is provided with a limiting rib 31. The limiting rib 31 abuts against the side of the indoor heat exchanger 21 near the top. Specifically, the limiting rib 31 is located on the windward side of the indoor heat exchanger 21.

[0053] Optionally, the setting of the limiting rib 31 can also prevent the heat exchange fins at the top of the indoor heat exchanger 21 from falling over.

[0054] Optionally, the limiting rib 31 extends toward the bottom end of the indoor heat exchanger 21. Optionally, the height of the limiting rib 31 is at least 2 mm.

[0055] Alternatively, the limiting rib 31 is arranged circumferentially around the top of the indoor heat exchanger 21 to abut against the windward and / or leeward top of the indoor heat exchanger 21.

[0056] With the above technical solution, the indoor heat exchanger 21 is a multi-section heat exchanger with bent connections, and an indoor air inlet 120 is provided on the corresponding side plate of the casing 10. When the axial fan is running, indoor air can be drawn into the indoor heat exchange chamber 101 through the indoor air inlet 120. This can increase the air intake of the portable air conditioner and improve the heat exchange efficiency. By setting a duct cover 30 at the top of the indoor heat exchanger 21 that abuts against the casing 10, and setting a limiting rib 31 below the duct cover 30 that abuts against the indoor heat exchanger 21, a relatively sealed space can be formed below the duct cover 30, preventing air from entering the indoor heat exchange chamber 101 and bypassing the indoor heat exchanger 21 to flow directly to the air outlet, thus improving the heat exchange efficiency. At the same time, the duct cover 30 is provided with a vent 301, which, in conjunction with the axial fan set above the indoor heat exchanger 21, can optimize the airflow path and concentrate the airflow towards the air outlet. After being heated by the indoor heat exchanger 21, the air is ejected upwards into the indoor environment, then dispersed and radiated in all directions, resulting in a wider airflow range and improving indoor air circulation efficiency. Furthermore, it avoids direct airflow onto users, enhancing the comfort of the airflow.

[0057] In the optional implementation scheme of the aforementioned portable air conditioner, combined with Figure 4 , Figure 5 As shown, an extending side 32 is provided circumferentially around the air duct cover 30. The extending side 32 extends toward the top cover 11; and / or, the extending side 32 extends away from the top cover 11.

[0058] By extending the side 32 around the duct cover 30, the structural rigidity can be improved and the stress can be dispersed to reduce deformation. At the same time, the contact area between the duct cover 30 and the housing 10 can be increased, thereby reducing the friction between the housing 10 and the duct cover 30 and reducing abnormal noise caused by vibration.

[0059] Optionally, the extended side 32 abuts against the inner wall surface of the housing 10. The extended side 32 increases the contact area between the duct cover 30 and the housing 10, thereby increasing the friction between them, reducing the shaking of the duct cover 30 during operation, and lowering noise. Simultaneously, the circumferentially arranged extended side 32 of the duct cover 30 improves structural rigidity, distributes stress, reduces deformation of the duct cover 30, and enhances structural strength.

[0060] Alternatively, the extended side 32 can be omitted.

[0061] In the optional implementation scheme of the aforementioned portable air conditioner, combined with Figures 4 to 6 As shown, a plurality of slots 33 are provided around the circumference of the air duct cover 30; a plurality of limiting blocks 331 are provided on the inner side of the housing 10, and the limiting blocks 331 are configured to be locked in the slots 33.

[0062] This arrangement avoids the need for recessed slots on the housing 10, thus ensuring the overall structural strength of the housing 10.

[0063] The cooperation between the slot 33 and the limiting block 331 can improve the stability of the duct cover 30 after installation, and avoid tilting or shaking due to vibration during the operation of the portable air conditioner.

[0064] Optionally, the housing 10 also includes a front cover 131 and a rear cover 132 that abut against each other. The front cover 131 and / or the rear cover 132 are provided with a limiting block 331 that matches the shape and size of the limiting groove 34.

[0065] Alternatively, the card slot is arranged in the housing 10, and the limiting block 331 is arranged in the circumference of the air duct cover 30.

[0066] Alternatively, the corresponding card slot 33 and limit block 331 are not provided.

[0067] In the optional implementation scheme of the aforementioned portable air conditioner, combined with Figure 7 , Figure 8 As shown, the indoor heat exchanger 21 includes a heat exchange body 211 and end plates 212 disposed on both sides of the heat exchange body 211; one of the end plates 212 and the limiting ribs 31 is provided with a limiting groove 34, and the end plates 212 or the limiting ribs 31 are respectively locked in the limiting grooves 34.

[0068] By cooperating with the end plate / limiting rib 31, the stability of the connection between the indoor heat exchanger 21 and the duct cover 30 can be improved; at the same time, the installation position of the duct cover 30 can be limited, thereby improving installation efficiency.

[0069] Optionally, multiple limiting grooves 34 are arranged.

[0070] Optionally, the multiple limiting grooves 34 are arranged at equal intervals. Alternatively, the multiple limiting grooves 34 are arranged at non-intervals.

[0071] Alternatively, the limit slot 34 may not be provided.

[0072] In the optional implementation scheme of the aforementioned portable air conditioner, combined with Figure 9 , Figure 10 As shown, taking the front cover 131 as an example, the inner wall surface of the housing 10 is provided with a stop rib 102, which is arranged around the circumference of the housing 10. The upper surface of the stop rib 102 is detachably connected to the lower surface of the air duct cover 30.

[0073] The cooperation between the stop rib 102 and the duct cover 30 prevents the periphery of the duct cover 30 from tilting, thus extending its service life. Simultaneously, it improves the sealing of the space below the duct cover 30, preventing air entering the indoor heat exchange chamber 101 from leaking through the gap between the duct cover 30 and the casing 10, ensuring heat exchange efficiency, and helping to reduce noise.

[0074] Optionally, the stop rib 102 and the duct cover 30 are connected by means of snap-fit, adsorption connection, screw connection, etc.

[0075] Alternatively, stop rib 102 may not be provided.

[0076] In this plan, Figure 9 , Figure 10 Only the stop rib 102 on the front cover 131 is shown. The stop rib 102 on the rear cover 132 is connected to the stop rib 102 on the front cover 131. The stop ribs 102 on the front cover 131 and the rear cover 132 are the same in shape and size to ensure the stability of the support for the air duct cover 30.

[0077] In an optional embodiment of the aforementioned portable air conditioner, a sealing ring is arranged around the outer periphery of the duct cover 30.

[0078] By setting a sealing ring, the sealing performance of the space below the duct cover 30 is improved, preventing air entering the indoor heat exchange chamber 101 from leaking through the gap between the duct cover 30 and the casing 10; and it can prevent noise generation when the duct cover 30 collides with the casing 10 due to vibration during the operation of the portable air conditioner.

[0079] Optionally, the sealing ring is a resilient seal.

[0080] In the optional implementation scheme of the aforementioned portable air conditioner, combined with Figure 1 , Figure 2 As shown, there are two indoor heat exchangers 21 arranged sequentially, with each indoor heat exchanger 21 comprising two sections; or, there is one indoor heat exchanger 21, which comprises three sections.

[0081] Specifically, the indoor heat exchanger 21 comprises two bent and connected sections, forming an L-shaped heat exchanger. Two indoor heat exchangers 21 are arranged sequentially end-to-end. At least two limiting ribs 31 are provided, corresponding to the shape of the L-shaped indoor heat exchanger 21. Correspondingly, the rear cover 132 is provided with an indoor air inlet 120 that matches the indoor heat exchanger 21.

[0082] Alternatively, the indoor heat exchanger 21 may consist of three bent and connected sections, forming a U-shaped heat exchanger. The limiting rib 31 corresponds to the shape of the U-shaped indoor heat exchanger 21.

[0083] This arrangement increases the heat exchange area, thereby improving the heat exchange effect of the indoor heat exchanger 21. Correspondingly, both the front cover 131 and the rear cover 132 are provided with indoor air inlets 120 that match the indoor heat exchanger 21.

[0084] In the optional implementation scheme of the aforementioned portable air conditioner, combined with Figure 2 As shown, it also includes an air diversion duct 302. The air diversion duct 302 connects the indoor air outlet 110 and the ventilation opening 301, and the air diversion duct 302 is snapped into the duct cover 30. The shape of one end of the air diversion duct 302 matches the shape of the indoor air outlet 110, and the shape of the other end of the air diversion duct 302 matches the shape of the ventilation opening 301.

[0085] The arrangement of the air duct 302 can optimize the airflow path between the vent 301 and the indoor air outlet 110, so that the air is delivered to the indoor air outlet 110 in a more concentrated manner, avoiding the decrease in cooling or heating efficiency caused by airflow dispersion, reducing energy loss and improving air outlet efficiency.

[0086] Alternatively, no air duct 302 may be installed.

[0087] In an optional embodiment of the aforementioned portable air conditioner, a mating side 303 extending toward the top cover plate 11 is provided circumferentially around the vent 301, and the inner wall of the mating side 303 abuts against the outer wall of the air duct 302. Multiple latches 51 are spaced apart on the mating side 303, and multiple locking blocks 52 are provided on the outer wall of the air duct 302, the locking blocks 52 being configured to engage with the latches 51.

[0088] By coordinating with the side 303, the contact area between the air duct 302 and the duct cover 30 is increased, thereby improving the sealing performance.

[0089] By setting the bayonet 51 and the locking block 52, a stable connection between the air duct 302 and the air duct cover 30 can be achieved with a simple structure, which is convenient for disassembly and assembly, and can also improve the relative stability between the air duct cover 30 and the air duct 302.

[0090] In the optional implementation scheme of the aforementioned portable air conditioner, combined with Figure 11 , Figure 12 As shown, the lower end of the air duct 302 is provided with a relief groove 3021, and at least part of the top of the indoor heat exchanger 21 is stuck in the relief groove 3021.

[0091] The clearance groove 3021 prevents interference between the indoor heat exchanger 21 and the air duct 302, thus preventing collisions caused by vibration or assembly errors during operation of the portable air conditioner and avoiding structural damage. Simultaneously, the clearance groove 3021 provides a pre-positioning function for the installation of the air duct 302, allowing direct alignment of the clearance groove 3021 with the heat exchanger during installation, reducing adjustment time and improving installation efficiency.

[0092] Alternatively, avoidance slot 3021 can be omitted.

[0093] in, Figure 11 , Figure 12 The indoor heat exchanger 21 is an example of three sections connected by bends.

[0094] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A portable air conditioner, characterized in that, include: The casing (10) has an indoor heat exchange chamber (101) inside, and the top cover plate (11) of the casing (10) is provided with an indoor air outlet (110) of the indoor heat exchange chamber (101). At least one indoor heat exchanger (21) is disposed in the indoor heat exchange chamber (101), and the indoor heat exchanger (21) is constructed as a multi-section heat exchanger with bent connections; wherein, an indoor air inlet (120) is provided on the side plate of the casing (10) corresponding to the indoor heat exchanger (21). A duct cover (30) is provided at the top of the indoor heat exchanger (21) and abuts against the casing (10). The duct cover (30) is provided with a ventilation opening (301). A limiting rib (31) is provided on the lower surface of the air duct cover (30). The limiting rib (31) is arranged along the circumference of the indoor heat exchanger (21), and the limiting rib (31) abuts against the top of the windward side and / or the top of the leeward side of the indoor heat exchanger (21). An indoor fan (41) is arranged between the vent (301) and the indoor air outlet (110), and the indoor fan (41) is an axial flow fan.

2. The portable air conditioner according to claim 1, characterized in that, An extended side (32) is provided around the circumference of the air duct cover (30); The extended side (32) extends toward the top cover plate (11); and / or, the extended side (32) extends away from the top cover plate (11).

3. The portable air conditioner according to claim 1, characterized in that, A plurality of spaced slots (33) are provided around the circumference of the air duct cover (30); The inner side of the housing (10) is provided with a plurality of limiting blocks (331), and the limiting blocks (331) are configured to be locked in the slot (33).

4. The portable air conditioner according to claim 1, characterized in that, The indoor heat exchanger (21) includes a heat exchange body (211) and end plates (212) disposed on both sides of the heat exchange body (211); One of the end plate (212) and the limiting rib (31) is provided with a limiting groove (34), and the end plate (212) or the limiting rib (31) is correspondingly engaged in the limiting groove (34).

5. The portable air conditioner according to claim 1, characterized in that, The inner wall surface of the housing (10) is provided with a stop rib (102), and the stop rib (102) is arranged around the circumference of the housing (10); The upper surface of the stop rib (102) is detachably connected to the lower surface of the duct cover (30).

6. The portable air conditioner according to claim 1, characterized in that, A sealing ring is arranged around the outer periphery of the air duct cover (30).

7. The portable air conditioner according to claim 1, characterized in that, The indoor heat exchanger (21) is provided in two, arranged sequentially end to end, wherein each indoor heat exchanger (21) comprises two sections; or, The indoor heat exchanger (21) is provided and comprises three sections.

8. The portable air conditioner according to any one of claims 1 to 7, characterized in that, Also includes: A diversion duct (302) is connected between the indoor air outlet (110) and the ventilation opening (301), and the diversion duct (302) is engaged with the duct cover plate (30); wherein, the shape of one end of the diversion duct (302) matches the shape of the indoor air outlet (110), and the shape of the other end of the diversion duct (302) matches the shape of the ventilation opening (301).

9. The portable air conditioner according to claim 8, characterized in that, A mating side (303) extending toward the top cover plate (11) is provided around the vent (301) in the circumferential direction, and the inner wall surface of the mating side (303) is engaged with the outer wall surface of the air duct (302). The mating side (303) is provided with a plurality of slots (51) spaced apart, and the outer wall of the air duct (302) is provided with a plurality of blocks (52), and the blocks (52) are configured to mate with the slots (51).

10. The portable air conditioner according to claim 8, characterized in that, The lower end of the air duct (302) is provided with a relief groove (3021), and at least part of the top of the indoor heat exchanger (21) is stuck in the relief groove (3021).

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