Top cover assembly and mobile air conditioner

Abstract

The utility model relates to the technical field of air conditioners, particularly provides a top cover assembly and a mobile air conditioner, and aims to solve the problem that the air supply range of the mobile air conditioner is limited. In order to achieve the purpose, the top cover assembly comprises a top cover plate and a top cover plate, the air outlet frame is arranged at the air outlet and provided with a step plate and an air channel side wall which are connected in a bent mode, an air outlet channel communicated with the air outlet is defined by the air channel side wall, and the sectional area of the end, connected with the air outlet, of the air outlet channel is smaller than that of the air outlet. The air outlet cover plate mechanism at least comprises an air duct cover plate matched with the air outlet in shape, and the air duct cover plate is rotatably arranged on the side wall of the air duct and is at least controlled to be rotatably switched between a closed state and an open state. The air flow flowing out of the air outlet channel flows along the air channel cover plate right facing the air outlet channel and also flows along the part of the air outlet channel, so that the air flow can be diffused outwards, and the air supply range is expanded.

Description

Technical Field

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

[0002] Currently, both wall-mounted and floor-standing air conditioners require fixed installation 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 of this technology, an air outlet guide plate is typically installed at the indoor air outlet located at the top of the air conditioner's casing, and the indoor air outlet is connected to an air outlet duct. However, since the cross-sectional size of the air outlet duct is the same as that of the indoor air outlet, and the shape of the air outlet guide plate matches that of the indoor air outlet, the air delivery range of the indoor air outlet is easily limited. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem of the limited air delivery range of portable air conditioners.

[0005] In a first aspect, the present invention provides a top cover assembly, comprising: a top cover plate having an air outlet; an air outlet frame disposed at the air outlet, the air outlet frame having a bent and connected stepped plate and an air duct sidewall, the air duct sidewall enclosing an air outlet channel communicating with the air outlet, wherein the cross-sectional area of ​​the end of the air outlet channel connected to the air outlet is smaller than the cross-sectional area of ​​the air outlet; and an air outlet cover plate mechanism, comprising at least an air duct cover plate matching the shape of the air outlet, the air duct cover plate being rotatably disposed on the air duct sidewall, and being at least controllably rotating between a closed state and an open state, the closed state including the air duct cover plate abutting against the stepped plate and blocking the air outlet, and the open state including the air duct cover plate rotating to form an angle with the stepped plate and opening the air outlet.

[0006] With the above technical solution, the cross-sectional area of ​​the air outlet is larger than the cross-sectional area of ​​the end of the air outlet duct closest to the air outlet. Correspondingly, the shape of the duct cover matches the air outlet, that is, the cross-sectional area of ​​the duct cover is larger than the cross-sectional area of ​​the end of the air outlet duct connecting to the air outlet. Therefore, when the duct cover is switched to the open state, the airflow in the air outlet duct can flow not only along the duct cover directly opposite the air outlet duct, but also along the portion of the duct cover that is larger than the air outlet duct, thus dispersing outward, expanding the air delivery angle and range, and improving the overall performance of the portable air conditioner. Simultaneously, when the duct cover is switched to the closed state, the duct cover abuts against the step plate to cover the air outlet, thereby achieving complete coverage of the air outlet duct, reducing the entry of dust and other foreign objects into the air outlet duct, and also improving the overall integrity and aesthetics of the portable air conditioner.

[0007] In an optional embodiment of the above-mentioned top cover assembly, the duct sidewall includes a first sidewall and a second sidewall arranged opposite to each other along a first direction; the air outlet cover mechanism further includes: a first mounting plate and a second mounting plate, arranged at intervals along a first direction on the inner side of the duct cover, one of the first mounting plate and the second mounting plate having a hinge shaft extending in the first direction and pivotally connected to the first sidewall, and the other having a pivot hole arranged coaxially with the hinge shaft; a drive motor, fixedly disposed on the side of the second sidewall away from the air outlet duct, the output shaft of the drive motor passing through the second sidewall and inserted into the pivot hole, the drive motor being configured to drive the duct cover to rotate around the hinge shaft, so that the duct cover switches between an open state and a closed state, wherein the first direction is the length direction of the duct cover.

[0008] By having one of the first and second mounting plates cooperate with the first sidewall, the length of the hinge shaft can be reduced, improving the flexibility of the duct cover rotation. By having the other of the first and second mounting plates cooperate with the second sidewall and the drive motor, the duct cover can be driven. The hinge shaft and the pivot hole are arranged coaxially to ensure the smoothness of the duct cover rotation.

[0009] In an optional embodiment of the above-mentioned top cover assembly, the duct cover plate includes a rotating end and a moving end extending along its own length, and the first mounting plate and the second mounting plate are arranged close to the rotating end; a receiving groove is formed on the stepped plate in the direction opposite to the air outlet, and when the duct cover plate switches between the open state and the closed state, the rotating end is accommodated in the receiving groove.

[0010] The recessed groove formed on the stepped plate can limit the rotation trajectory of the rotating end when the moving end rotates relative to the rotating end, thus limiting the rotation of the rotating end and improving the stability and safety of the duct cover when it rotates.

[0011] In an optional embodiment of the above-described top cover assembly, the receiving groove includes a rear groove wall, which is an arc-shaped sidewall that matches the rotation trajectory of the rotating end.

[0012] By constructing the rear groove wall as an arc-shaped sidewall, the friction force during the movement of the rotating end can be reduced, noise can be reduced, and motion performance can be improved.

[0013] In an optional embodiment of the above-mentioned top cover assembly, the receiving groove further includes a bottom groove wall, which is configured to abut against the rotating end when the angle between the air duct cover and the step plate is at its maximum.

[0014] In this way, the rotation angle of the air duct cover can be limited.

[0015] In an optional embodiment of the above-described top cover assembly, the receiving groove further includes a front groove wall arranged opposite to the rear groove wall, the front groove wall being arc-shapedly connected to the step plate.

[0016] By setting an arc-shaped connection between the front groove wall and the step plate, it is possible to avoid scraping the air duct cover plate when it rotates, thus preventing damage to the air duct cover plate and extending its service life.

[0017] In an optional embodiment of the above-mentioned top cover assembly, the air outlet cover mechanism further includes: guide strips, which are spaced apart along the length of the air duct cover on the windward side of the air duct cover, and the guide strips extend from the rotating end to the moving end.

[0018] By setting the airflow guide strip, the airflow passing through the inner surface of the air duct cover can be dispersed and guided, improving the dispersion and uniformity of the airflow, thereby enhancing the comfort of the airflow at the air outlet.

[0019] In an optional embodiment of the above-described top cover assembly, the cross-sectional area of ​​the guide strip gradually decreases from the rotating end to the moving end.

[0020] By setting the cross-sectional area of ​​the guide strip to gradually decrease from its rotating end to its moving end, the airflow velocity around it can be increased, improving the air delivery effect of the air outlet. At the same time, it can guide the airflow along the direction defined by the guide strip, avoiding excessive airflow obstruction, thereby making the airflow distribution more uniform, improving the comfort of the airflow, and reducing noise.

[0021] In an optional embodiment of the above-mentioned top cover assembly, the top cover plate and the air outlet frame are integrally formed.

[0022] By integrating the top cover plate with the air outlet frame, structural strength can be improved, installation difficulty can be reduced, and assembly efficiency can be increased.

[0023] In a second aspect, the present invention provides a portable air conditioner, including the top cover assembly as described above.

[0024] When adopting the above technical solution, the cross-sectional area of ​​the air outlet is larger than the cross-sectional area of ​​the end of the air outlet duct closest to the air outlet. Correspondingly, the shape of the duct cover matches the air outlet, that is, the cross-sectional area of ​​the duct cover is larger than the cross-sectional area of ​​the end of the air outlet duct connecting to the air outlet. Therefore, when the duct cover is switched to the open state, the airflow flowing out of the air outlet duct can flow not only along the duct cover directly opposite the air outlet duct, but also along the portion of the duct cover that is larger than the air outlet duct, thereby dispersing outward and expanding the air delivery angle and range. Simultaneously, when the duct cover is switched to the closed state, the duct cover abuts against the step plate, achieving complete coverage of the air outlet duct, reducing the entry of dust and other foreign objects into the air outlet duct, and also improving the overall integrity and aesthetics of the portable air conditioner. 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 a schematic diagram of a top cover assembly in a closed state provided by this utility model;

[0027] Figure 2 This is a schematic diagram of a top cover assembly in the open state provided by this utility model;

[0028] Figure 3 This is a schematic diagram of another top cover assembly provided by this utility model in the open state;

[0029] Figure 4 This is an exploded view of a top cover assembly provided by this utility model;

[0030] Figure 5 This is an exploded view of another top cover assembly provided by this utility model;

[0031] Figure 6 This is a structural schematic diagram of an air duct cover provided by this utility model;

[0032] Figure 7 This is a structural schematic diagram of a portable air conditioner provided by this utility model;

[0033] Figure 8 This is a cross-sectional schematic diagram of a portable air conditioner provided by this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. Casing; 20. First fan;

[0036] 100. Top cover; 110. Air outlet;

[0037] 200, Air outlet frame; 201, Air outlet duct; 210, Step plate; 211, Receiving groove; 2111, Rear groove wall; 2112, Front groove wall; 2113, Bottom groove wall; 220, Air duct side wall; 221, First side wall; 222, Second side wall;

[0038] 300. Air outlet cover mechanism; 310. Air duct cover; 3101. Windward side; 311. Rotating end; 312. Moving end; 321. First mounting plate; 322. Second mounting plate; 330. Drive motor; 331. Output shaft; 341. Hinge shaft; 342. Pivot hole; 350. Air guide strip; 360. Corner reinforcing rib;

[0039] 400. Ventilation guardrail. Detailed Implementation

[0040] 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.

[0041] 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] 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.

[0043] Firstly, combining Figures 1 to 6 As shown, this utility model provides a top cover assembly, including a top cover plate 100, an air outlet frame 200, and an air outlet cover mechanism 300. An air outlet 110 is provided on the top cover plate 100. The air outlet frame 200 is disposed at the air outlet 110, and the air outlet frame 200 is constructed with a bent and connected stepped plate 210 and an air duct sidewall 220. The air duct sidewall 220 encloses an air outlet channel 201 that communicates with the air outlet 110, wherein the cross-sectional area of ​​the end of the air outlet channel 201 connected to the air outlet 110 is smaller than the cross-sectional area of ​​the air outlet 110. The air outlet cover mechanism 300 includes at least an air duct cover 310 that matches the shape of the air outlet 110. The air duct cover 310 is rotatably disposed on the side wall 220 of the air duct and can rotate between a closed state and an open state in a controlled manner. The closed state includes the air duct cover 310 abutting against the step plate 210 and blocking the air outlet 110. The open state includes the air duct cover 310 rotating to form an angle with the step plate 210 and opening the air outlet 110.

[0044] Optionally, the duct sidewall 220 encloses a vertically extending air outlet channel 201, including an air outlet end connected to the air outlet 110. A stepped plate 210 is bent and connected to the upper end of the duct sidewall 220. The stepped plate 210 is fixedly connected to the top cover plate 100 to form a supporting foundation for the duct cover plate 310. Optionally, the stepped plate 210 is arranged parallel to the top cover plate 100.

[0045] Optionally, the shape of the duct cover 310 matches the shape of the air outlet 110, and the shape and size of the duct cover 310 are sufficient to cover the air outlet 110, thereby blocking the air outlet 110 when switched to the closed state to prevent dust from entering. Specifically, when the duct cover 310 is switched to the closed state, it abuts against the step plate 210 to ensure a sealing effect on the air outlet duct 201.

[0046] In this design, the cross-sectional area of ​​the air outlet end of the air outlet duct 201 is smaller than the cross-sectional area of ​​the air outlet 110, meaning the cross-sectional area of ​​the air outlet end of the air outlet duct 201 is smaller than the area of ​​the duct cover plate 310. Thus, when the duct cover plate 310 is switched to the open state and forms an angle with the step plate 210, the airflow flowing out of the air outlet duct 201 can flow not only along the portion of the duct cover plate 310 directly opposite the air outlet duct 201, but also along the portion of the duct cover plate 310 that is larger than the air outlet end of the air outlet duct. This allows the airflow to disperse outwards, expanding the air delivery angle and range, improving the air delivery effect, and enhancing the overall performance of the portable air conditioner.

[0047] Furthermore, by setting the step plate 210, not only can the cross-sectional area of ​​the air outlet end of the air outlet channel 201 be limited to be smaller than the cross-sectional area of ​​the air outlet 110, but it can also abut against the air outlet 110 when the air duct cover plate 310 is switched to the closed state, thereby achieving overall coverage of the air outlet channel 201, reducing the entry of dust and other foreign objects into the air outlet channel 201, and also improving the overall appearance and aesthetics of the portable air conditioner.

[0048] Optionally, the air outlet end of the air outlet duct is equipped with an air outlet guard 400 to prevent users from putting their hands into the air outlet duct and getting injured.

[0049] Optionally, the air outlet guard 400 is detachably connected to the duct sidewall 220 to facilitate the replacement, maintenance or cleaning of the air outlet guard 400.

[0050] With the above technical solution, the cross-sectional area of ​​the air outlet is larger than the cross-sectional area of ​​the end of the air outlet duct closest to the air outlet. Correspondingly, the shape of the duct cover matches the air outlet, that is, the cross-sectional area of ​​the duct cover is larger than the cross-sectional area of ​​the end of the air outlet duct connecting to the air outlet. Therefore, when the duct cover is switched to the open state, the airflow in the air outlet duct can flow not only along the duct cover directly opposite the air outlet duct, but also along the portion of the duct cover that is larger than the air outlet duct, thus dispersing outward, expanding the air delivery angle and range, and improving the overall performance of the portable air conditioner. Simultaneously, when the duct cover is switched to the closed state, the duct cover abuts against the step plate to cover the air outlet, thereby achieving complete coverage of the air outlet duct, reducing the entry of dust and other foreign objects into the air outlet duct, and also improving the overall integrity and aesthetics of the portable air conditioner.

[0051] In an optional embodiment of the aforementioned top cover assembly, the duct sidewall 220 includes a first sidewall 221 and a second sidewall 222 arranged opposite to each other along a first direction; the air outlet cover mechanism 300 further includes a first mounting plate 321, a second mounting plate 322, and a drive motor 330. The first mounting plate 321 and the second mounting plate 322 are spaced apart along the first direction on the inner side of the duct cover 310. One of them has a hinge shaft 341 extending along the first direction and pivotally connected to the first sidewall 221, while the other has a pivot hole 342 coaxially arranged with the hinge shaft 341. The drive motor 330 is fixedly mounted on the side of the second sidewall 222 opposite to the air outlet duct. The output shaft 331 extends through the second sidewall 222 and is inserted into the pivot hole 342. The drive motor 330 is configured to drive the duct cover 310 to rotate around the hinge shaft 341, thereby switching the duct cover 310 between an open state and a closed state; the first direction is the length direction of the duct cover 310.

[0052] By cooperating with the first sidewall 220 through one of the first mounting plate 321 and the second mounting plate 322, the length of the hinge shaft 341 can be reduced, improving the flexibility of the duct cover 310 during rotation. By cooperating with the other of the first mounting plate 321 and the second mounting plate 322 through the second sidewall 222 and the drive motor 330, the duct cover 310 can be driven. The hinge shaft 341 and the pivot hole 342 are arranged coaxially to ensure the smooth rotation of the duct cover 310.

[0053] Optionally, the duct sidewall 220 includes at least two opposing, parallelly arranged first sidewalls 221 and second sidewalls 222, wherein the first sidewalls 221 and second sidewalls 222 are arranged on one side extending in the width direction of the air outlet 110. Optionally, the first mounting plate 321 and the second mounting plate 322 are respectively arranged parallel to the first sidewalls 221 and the second sidewalls 222. In this way, the duct cover 310 can be rotated along its own length direction to facilitate opening the air outlet 110.

[0054] Optionally, the first mounting plate 321 has a hinge shaft 341 on its side facing the first sidewall, and the hinge shaft 341 is rotatably connected to the first sidewall 221. Simultaneously, the second mounting plate 322 has a pivot hole 342, into which the output shaft 331 of the drive motor 330 can be inserted; that is, the output shaft 331 of the drive motor 330 passes through the second sidewall 222 and is inserted into the pivot hole 342. Thus, when the output shaft 331 of the drive motor rotates, it drives the duct cover 310 to rotate stably relative to the duct sidewall 220. Specifically, the duct cover 310 can rotate clockwise or counterclockwise.

[0055] Optionally, the pivot hole 342 is constructed as a polygon, and the output shaft 331 of the drive motor 330 is also constructed as a corresponding polygon. In this way, it is possible to ensure that the output shaft 331 of the drive motor 330 rotates while driving the air duct cover 310 to rotate.

[0056] Optionally, the hinge shaft 341 and the pivot hole 342 are arranged coaxially to ensure the smooth rotation of the air duct cover 310.

[0057] Optionally, a corner reinforcing rib 360 is provided at the corner where the first mounting plate 321 connects to the duct cover 310. And / or, a corner reinforcing rib 360 is provided at the corner where the second mounting plate 322 connects to the duct cover 310.

[0058] Alternatively, corner stiffeners can be omitted.

[0059] Alternatively, instead of providing the first mounting plate 321 and the second mounting plate 322, a hinge shaft extending along its length is provided on the windward side 3101 of the duct cover 310. The output shaft 331 of the drive motor 330 is driven and connected to one end of the hinge shaft, and the other end of the hinge shaft is rotatably connected to the duct sidewall 220. It should be noted that the windward side 3101 of the duct cover 310 refers to the side facing the air outlet duct 201 in the closed state.

[0060] Optionally, the output shaft 331 of the drive motor 330 passes through the second side wall and is inserted into the pivot hole 342. This protects the drive motor 330 while ensuring the drive of the duct cover 310.

[0061] In an optional embodiment of the top cover assembly described above, the duct cover 310 includes a rotating end 311 and a moving end 312 extending along its own length, and a first mounting plate 321 and a second mounting plate 322 are arranged close to the rotating end 311; a receiving groove 211 is formed on the stepped plate 210 in the direction opposite to the air outlet 110, and when the duct cover 310 switches between an open state and a closed state, the rotating end 311 is accommodated in the receiving groove 211.

[0062] By accommodating the rotating end 311 in the accommodating groove 211 formed on the step plate 210, the rotation trajectory of the rotating end 311 can be restricted when the moving end 312 rotates relative to the rotating end 311, thereby limiting the rotation of the rotating end 311 and improving the stability and safety of the duct cover plate 310 when it rotates.

[0063] Optionally, a receiving groove 211 is provided at the rear end of the stepped plate 210 (i.e., the end located on one side of the rotating end 311 of the duct cover 310), and the first mounting plate 321 and the second mounting plate 322 are arranged close to the rotating end 311. In this way, when the duct cover 310 is switched to the open or closed state, the rotating end 311 moves up and down within the receiving groove 211, which not only ensures the aesthetic appearance but also limits the rotation of the rotating end 311, thereby further improving the stability of the duct cover 310 during rotation.

[0064] Optionally, the depth of the receiving groove 211 is positively correlated with the angle between the duct cover 310 and the step plate 210.

[0065] Optionally, two receiving grooves 211 are provided, located at both ends of the air duct cover 310 along its length, with their sides facing each other being open, and their rear groove walls 2111 being connected as one piece. This facilitates the rotation of the air duct cover 310 and saves costs.

[0066] In an optional embodiment of the top cover assembly described above, the receiving groove 211 includes a rear groove wall 2111, which is an arc-shaped sidewall that matches the rotation trajectory of the rotating end 311.

[0067] By constructing the rear groove wall 2111 as an arc-shaped sidewall, the friction force during the movement of the rotating end 311 can be reduced, noise can be reduced, and motion performance can be improved.

[0068] Optionally, the rotating end 311 slides against the rear groove wall 2111 while moving up and down along the receiving groove 211. Since the rotating end 311 rotates about the hinge axis 341, the movement trajectory of the rotating end 311 is an arc-shaped movement trajectory. By constructing the rear groove wall 2111 as an arc-shaped sidewall, the movement trajectory of the rotating end 311 can be limited, and the friction force during the movement of the rotating end 311 can be reduced, noise can be reduced, and the motion performance can be improved.

[0069] In an optional embodiment of the top cover assembly described above, the receiving groove 211 further includes a front groove wall 2112 arranged opposite to the rear groove wall 2111, and the front groove wall 2112 is arc-shapedly connected to the step plate 210.

[0070] By setting the front groove wall 2112 and the step plate 210 in an arc shape, the air duct cover 310 can be prevented from being scratched when it rotates, thus avoiding damage to the air duct cover 310 and extending its service life.

[0071] Specifically, when the duct cover 310 rotates around the hinge shaft 341, the rotating end 311 extends into or gradually moves out of the receiving groove 211. During this process, the windward side 3101 of the duct cover 310 abuts against the connection between the front groove wall 2112 and the step plate 210 to improve the stability of the rotation of the duct cover 310. To avoid scratching the duct cover 310, the front groove wall 2112 and the step plate 210 are connected in an arc shape to form a smooth transition.

[0072] Alternatively, the front groove wall 2112 is connected to the step plate 210 at a right angle.

[0073] In an optional embodiment of the top cover assembly described above, the receiving groove 211 further includes a bottom groove wall 2113, which is configured to abut against the rotating end 311 when the angle between the air duct cover plate 310 and the step plate 210 is at its maximum.

[0074] The bottom groove wall 2113 is connected to the rear side wall 2111 and the front side wall 2112 respectively.

[0075] In this way, the maximum angle of rotation of the duct cover 310 can be limited to ensure the guiding and dispersing effect on the exhaust airflow.

[0076] In an optional embodiment of the top cover assembly described above, the air outlet cover mechanism 300 further includes guide strips 350. The guide strips 350 are arranged at intervals along the length of the air duct cover 310 on the windward side 3101 of the air duct cover 310, and the guide strips 350 extend from the rotating end 311 to the moving end 312.

[0077] By setting the guide strip 350, the airflow flowing through the inner surface of the air duct cover 310 can be dispersed and guided, improving the dispersion and uniformity of the airflow, thereby improving the comfort of the airflow at the air outlet 110.

[0078] Specifically, by setting multiple guide strips 350 extending from the rotating end 311 to the moving end 312, the airflow flowing through the windward side 3101 of the air duct cover 310 can be turbulently dispersed, thereby making the airflow more easily diffuse towards the room, forming a more comfortable breeze, effectively preventing the airflow from blowing directly onto the user, making the user feel a gentle breeze or even no wind, and improving the comfort of the airflow from the air outlet 110.

[0079] Alternatively, the 350-degree guide bar can be omitted.

[0080] In an optional embodiment of the top cover assembly described above, the cross-sectional area of ​​the guide strip 350 gradually decreases from the rotating end 311 to the moving end 312.

[0081] That is, the guide strip 350 is made into a tapered strip from its rotating end 311 to its moving end 312. By setting the cross-sectional area of ​​the guide strip 350 to gradually decrease from its rotating end 311 to its moving end 312, the airflow velocity around it can be increased, improving the air delivery effect of the air outlet 110. At the same time, it can guide the airflow along the direction defined by the guide strip 350, avoiding excessive obstruction of the airflow, thereby making the airflow distribution more uniform, improving the comfort of the airflow, and reducing noise.

[0082] Alternatively, the cross-sectional area of ​​the guide bar 350 in the direction from the rotating end 311 to the moving end 312 remains unchanged.

[0083] In an optional embodiment of the above-mentioned top cover assembly, the windward side 3101 of the duct cover is coated with a bactericidal coating.

[0084] By coating the windward side 3101 of the duct cover 310 with a bactericidal coating, the airflow passing through the windward side 3101 of the duct cover 310 can be sterilized and purified, thereby improving the cleanliness of the airflow from the outlet 110.

[0085] Specifically, the windward side 3101 of the duct cover 310 refers to the surface facing the air outlet duct 201 when closed. That is, the surface of the duct cover 310 facing the air outlet duct 201 is coated with a bactericidal coating. This allows the duct cover 310 to guide and disperse airflow while simultaneously increasing its purification function, thereby purifying the airflow exiting the duct cover 310 and improving air cleanliness and user comfort.

[0086] Optionally, the duct cover 310 itself can also have a purification function. That is, when manufacturing the duct cover 310, a material containing silver ions is mixed into the production material. In this way, the duct cover 310 itself has a purification function, thereby purifying the airflow flowing out through the inner surface of the duct cover 310.

[0087] Optionally, the bactericidal coating is a silver ion air purification membrane layer.

[0088] Alternatively, the windward side 3101 of the duct cover 310 is coated with a bactericidal coating.

[0089] In an optional embodiment of the above-mentioned top cover assembly, the top cover plate 100 and the air outlet frame 200 are integrally formed.

[0090] By integrating the top cover plate 100 with the air outlet frame 200, the structural strength can be improved, the installation difficulty can be reduced, and the assembly efficiency can be increased.

[0091] Alternatively, the top cover 100 and the air outlet frame 200 can be fixedly connected or detachably connected.

[0092] Secondly, combining Figures 1 to 8 As shown, this utility model provides a portable air conditioner, including the top cover assembly as described above.

[0093] When adopting the above technical solution, the cross-sectional area of ​​the air outlet is larger than the cross-sectional area of ​​the end of the air outlet duct closest to the air outlet. Correspondingly, the shape of the duct cover matches the air outlet, that is, the cross-sectional area of ​​the duct cover is larger than the cross-sectional area of ​​the end of the air outlet duct connecting to the air outlet. Therefore, when the duct cover is switched to the open state, the airflow flowing out of the air outlet duct can flow not only along the duct cover directly opposite the air outlet duct, but also along the portion of the duct cover that is larger than the air outlet duct, thereby dispersing outward and expanding the air delivery angle and range. Simultaneously, when the duct cover is switched to the closed state, the duct cover abuts against the step plate, achieving complete coverage of the air outlet duct, reducing the entry of dust and other foreign objects into the air outlet duct, and also improving the overall integrity and aesthetics of the portable air conditioner.

[0094] Optionally, the portable air conditioner includes a housing 10, the top of which is open, and a top cover assembly is disposed at the open end. The housing 10 contains two independent heat exchange chambers: a first heat exchange chamber and a second heat exchange chamber. In this design, the first heat exchange chamber is located at the upper end of the housing 10, i.e., the top cover assembly covers the top of the first heat exchange chamber. The first heat exchange chamber contains a first heat exchanger and a first fan 20. The fan outlet of the first fan 20 is connected to an air outlet channel 201, i.e., the air outlet channel 201 connects the fan outlet of the first fan 20 to the air outlet 110. Driven by the first fan 20, indoor air enters the first heat exchange chamber, exchanges heat with the first heat exchanger, flows to the first fan 20, exits the first fan 20, and flows through the air outlet channel 201 to the air outlet 110.

[0095] Optionally, the top cover 100 is detachably connected to the housing 10.

[0096] Alternatively, the top cover 100 is fixedly connected to the housing 10.

[0097] 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 top cover assembly, characterized in that, include: The top cover (100) has an air outlet (110); An air outlet frame (200) is disposed at the air outlet (110). The air outlet frame (200) is constructed with a bent and connected stepped plate (210) and an air duct sidewall (220). The air duct sidewall (220) encloses an air outlet channel (201) that communicates with the air outlet (110). The cross-sectional area of ​​the end of the air outlet channel (201) connected to the air outlet (110) is smaller than the cross-sectional area of ​​the air outlet (110). The air outlet cover mechanism (300) includes at least an air duct cover (310) that matches the shape of the air outlet (110). The air duct cover (310) is rotatably disposed on the side wall (220) of the air duct and can rotate between a closed state and an open state in a controlled manner. The closed state includes the air duct cover (310) abutting against the step plate (210) and blocking the air outlet (110). The open state includes the air duct cover (310) rotating to form an angle with the step plate (210) and opening the air outlet (110).

2. The top cover assembly according to claim 1, characterized in that, The duct sidewall (220) includes a first sidewall (221) and a second sidewall (222) arranged opposite to each other along a first direction; The air outlet cover mechanism (300) also includes: A first mounting plate (321) and a second mounting plate (322) are arranged at intervals along a first direction on the inner side of the air duct cover (310). One of the first mounting plate (321) and the second mounting plate (322) is provided with a hinge shaft (341) extending along the first direction and pivotally connected to the first side wall (221), and the other is provided with a pivot hole (342) arranged coaxially with the hinge shaft (341). A drive motor (330) is fixedly disposed on the side of the second sidewall (222) away from the air outlet channel. The output shaft (331) of the drive motor (330) passes through the second sidewall (222) and is inserted into the pivot hole (342). The drive motor (330) is configured to drive the air duct cover (310) to rotate around the hinge axis (341) so that the air duct cover (310) switches between an open state and a closed state. Wherein, the first direction is the length direction of the air duct cover (310).

3. The top cover assembly according to claim 2, characterized in that, The duct cover (310) includes a rotating end (311) and a moving end (312) extending along its own length, and the first mounting plate (321) and the second mounting plate (322) are arranged close to the rotating end (311); The stepped plate (210) has a recessed accommodating groove (211) that is recessed away from the air outlet (110). When the air duct cover (310) switches between the open state and the closed state, the rotating end (311) is accommodated in the accommodating groove (211).

4. The top cover assembly according to claim 3, characterized in that, The receiving groove (211) includes a rear groove wall (2111), which is an arc-shaped sidewall that matches the rotation trajectory of the rotating end (311).

5. The top cover assembly according to claim 4, characterized in that, Also includes: The receiving groove (211) also includes a front groove wall (2112) arranged opposite to the rear groove wall (2111), and the front groove wall (2112) is connected to the step plate (210) in an arc transition.

6. The top cover assembly according to claim 3, characterized in that, The receiving groove (211) also includes a bottom groove wall (2113), which is configured to abut against the rotating end (311) when the angle between the air duct cover plate (310) and the step plate (210) is at its maximum.

7. The top cover assembly according to claim 3, characterized in that, The air outlet cover mechanism (300) also includes: The guide strips (350) are arranged at intervals along the length of the duct cover (310) on the windward side (3101) of the duct cover (310), and the guide strips (350) extend from the rotating end (311) to the moving end (312).

8. The top cover assembly according to claim 7, characterized in that, The cross-sectional area of ​​the guide strip (350) gradually decreases from the rotating end (311) to the moving end (312).

9. The top cover assembly according to any one of claims 1 to 8, characterized in that, The top cover plate (100) and the air outlet frame (200) are integrally formed.

10. A portable air conditioner, characterized in that, Includes the top cover assembly as described in any one of claims 1 to 9.

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