Ceiling indoor unit

Abstract

An air duct is formed in a main body part, an indoor heat exchanger and a fan are arranged in the air duct, a panel assembly is arranged below the main body part and comprises an upper panel and a lower panel, the upper panel is provided with an upper air outlet, the upper air outlet is communicated with the air outlet side of the air duct, and the lower panel is provided with a lower air outlet. The upper panel is provided with an upper air outlet, the lower panel is provided with an extension part, the extension part extends into the upper air outlet to divide the upper air outlet into a first sub upper air outlet and a second sub upper air outlet, the first sub upper air outlet is communicated with the lower air outlet, and an annular first air outlet channel extending in the horizontal direction is formed between the upper panel and the lower panel; and the first air outlet duct is communicated with the second sub upper air outlet. According to the ceiling indoor unit, horizontal air outlet can be achieved, the air outlet effect of avoiding people from air is improved, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to a ceiling-mounted indoor unit. Background Technology

[0002] The ceiling-mounted indoor unit has four elongated air outlets on its air outlet panel, arranged in a square. Inside each outlet is a guide vane to adjust the airflow direction. To achieve a "wind avoids people" effect, the guide vane's swing angle is increased. However, limited by the side walls of the air outlets, the guide vane cannot swing to a horizontal position, thus preventing horizontal airflow and limiting the "wind avoids people" effect.

[0003] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0004] In response to the problems mentioned in the background art, this utility model proposes a ceiling-mounted indoor unit that can achieve horizontal airflow, improve the airflow effect of "wind avoiding people", and enhance the user experience.

[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0006] In some embodiments of this application, a ceiling-mounted indoor unit is provided. An air duct is formed within the main body, and an indoor heat exchanger and a fan are disposed within the air duct. A panel assembly is disposed below the main body. The panel assembly includes an upper panel and a lower panel. The upper panel has an upper air outlet that communicates with the air outlet side of the air duct. The lower panel has a lower air outlet and an extension that extends into the upper air outlet to divide the upper air outlet into a first sub-upper air outlet and a second sub-upper air outlet. The first sub-upper air outlet communicates with the lower air outlet. A first air outlet duct that extends horizontally and is annular is formed between the upper panel and the lower panel. The first air outlet duct communicates with the second sub-upper air outlet.

[0007] The above technical solution has the following advantages or beneficial effects: The panel assembly consists of an upper panel and a lower panel. An extension on the lower panel extends into the upper air outlet to form two sub-air outlets arranged on the left and right, thus creating two air outlets, one for horizontal airflow and the other for downward airflow. Horizontal airflow is achieved through the first air outlet duct, achieving a "wind avoids people" airflow effect and improving the user experience.

[0008] The assembly of the upper and lower panels creates two air ducts for airflow. The horizontal air duct section for horizontal airflow is formed by the gap between the upper and lower panels, eliminating the need for additional duct structures and simplifying the structure while achieving 306° horizontal airflow without dead angles.

[0009] In some embodiments of this application, a ceiling-mounted indoor unit is provided, wherein an air duct is formed in the main body, and an indoor heat exchanger and a fan are disposed in the air duct; a panel assembly is disposed below the main body, and the panel assembly forms a return air inlet, a first air outlet duct and a second air outlet duct; the return air inlet is connected to the return air side of the air duct.

[0010] The first air outlet duct is connected to the air outlet side of the duct, the first air outlet duct surrounds the return air inlet, and the first air outlet duct has a horizontal duct section extending in the horizontal direction.

[0011] When the gas that has been heated by the indoor heat exchanger flows out through the first air outlet duct, the gas flowing out through the first air outlet duct forms a 360° circular air outlet effect because the first air outlet duct surrounds the air outlet, that is, the first air outlet duct is a ring duct.

[0012] Furthermore, since the first air outlet duct has a horizontal duct section extending in the horizontal direction, the gas flowing out from the first air outlet duct flows out through the horizontal duct section, thus creating a horizontal air outlet effect.

[0013] Therefore, when the gas in the air duct, after being heated by the indoor heat exchanger, flows out through the first air outlet duct, it forms a 360° ring-shaped and horizontal air outlet effect without dead angles, achieving a "wind avoids people" blowing effect and improving the user experience.

[0014] The second air outlet duct is located between the return air vent and the first air outlet duct. A guide vane is installed inside the second air outlet duct to adjust the airflow direction. When the gas, after being heated by the indoor heat exchanger, flows out through the second air outlet duct, the direction of the airflow is adjusted by the movement of the guide vane.

[0015] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of a ceiling-mounted indoor unit according to some embodiments;

[0018] Figure 2 This is a schematic diagram of a gas flow path for a ceiling-mounted indoor unit according to some embodiments;

[0019] Figure 3This is a schematic diagram of another gas flow path for a ceiling-mounted indoor unit according to some embodiments;

[0020] Figure 4 An exploded view of a ceiling-mounted indoor unit according to some embodiments;

[0021] Figure 5 An exploded view of a panel assembly according to some embodiments;

[0022] Figure 6 This is a structural diagram of a panel assembly according to some embodiments;

[0023] Figure 7 A bottom view of a panel assembly according to some embodiments;

[0024] Figure 8 for Figure 7 Sectional view along line AA;

[0025] Figure 9 This is a structural diagram of a top panel according to some embodiments;

[0026] Figure 10 This is a structural diagram of the lower panel according to some embodiments;

[0027] Figure 11 This is a structural diagram of a first auxiliary air outlet duct and a second auxiliary air outlet duct according to some embodiments;

[0028] Figure 12 This is a structural diagram of an insulation component according to some embodiments.

[0029] Figure label:

[0030] 100. Main body; 110. Air duct;

[0031] 200. Electrical box;

[0032] 300. Refrigerant piping;

[0033] 400. Panel components;

[0034] 410. Top panel; 411. Top air outlet; 4111. First sub-top air outlet; 4112. Second sub-top air outlet; 412. Top return air outlet; 413. First arc-shaped inner wall; 414. First mounting groove; 415. Top mounting groove; 416. First cover plate; 417. Reinforcing rib; 418. Water tank; 419. First auxiliary air outlet duct;

[0035] 420. Lower panel; 421. Lower air outlet; 422. Lower return air outlet; 423. Second arc-shaped inner wall; 424. Extension; 425. Lower mounting groove; 426. Second cover plate; 427. Second auxiliary air outlet duct;

[0036] 430. Electric motor;

[0037] 440. Insulation component; 441. First insulation component; 442. First air outlet channel; 443. Second insulation component; 444. Second air outlet channel; 445. Micro-air outlet channel;

[0038] 450. Filter screen;

[0039] 460. Grille;

[0040] 471. First air outlet duct; 4711. Horizontal air duct section; 472. Second air outlet duct; 473. Auxiliary air outlet duct; 474. Return air inlet;

[0041] 480. Air guide plate;

[0042] 491. Foamed parts; 492. Sealing gaskets;

[0043] 500. Indoor heat exchanger;

[0044] 600. Fan. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this application, it should be noted that, 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0051] In this application, the air conditioner performs a cooling or heating cycle by using a compressor, condenser, expansion valve, and evaporator. Low-temperature, low-pressure refrigerant enters the compressor, which compresses it into a high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0052] The expansion valve expands the high-temperature, high-pressure liquid refrigerant that condenses in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0053] The outdoor unit of an air conditioner refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of an air conditioner includes the indoor heat exchanger, and an expansion valve can be provided in either the indoor or outdoor unit.

[0054] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0055] In some embodiments of this application, the indoor unit of the air conditioner is a ceiling-mounted indoor unit. Figure 1 This is a structural diagram of a ceiling-mounted indoor unit. Figure 2 This is a cross-sectional view of a ceiling-mounted indoor unit, illustrating a schematic diagram of its gas flow path. Figure 3 This is a schematic diagram of another type of gas flow path for ceiling-mounted indoor units. Figure 4 This is an exploded view of a ceiling-mounted indoor unit.

[0056] The ceiling-mounted indoor unit includes a main body 100. An air duct 110 is formed inside the main body 100. The main body 100 has a rectangular outline. Hooks are provided on the outer side wall of the main body 100 to facilitate the hoisting of the ceiling-mounted indoor unit.

[0057] The ceiling-mounted indoor unit also includes an indoor heat exchanger 500. The indoor heat exchanger 500 is disposed within the air duct 110 and is configured to exchange heat with the air flowing through it.

[0058] The ceiling-mounted indoor unit also includes a fan 600. The fan 600 is located within the air duct 110 and is configured to provide power for airflow.

[0059] The ceiling-mounted indoor unit also includes an electrical box 200. The electrical box 200 is located on the side of the main body 100.

[0060] The ceiling-mounted indoor unit also includes a panel assembly 400. Figure 5 An exploded view of panel assembly 400. Figure 6 This is a structural diagram of a panel assembly. Figure 7 This is a bottom view of panel component 400. Figure 8 for Figure 7 Sectional view along the AA direction.

[0061] The panel assembly 400 is fixedly connected to the main body 100. Specifically, the panel assembly 400 is fixedly disposed below the main body 100.

[0062] The panel assembly 400 has a return air vent 474. The return air vent 474 is connected to the return air side of the air duct 110.

[0063] The panel assembly 400 also forms a first air outlet duct 471. The first air outlet duct 471 communicates with the air outlet side of the duct 110. The first air outlet duct 471 surrounds the return air inlet 474. The first air outlet duct 471 has a horizontal duct section 4711 extending in the horizontal direction.

[0064] When the gas that has been heated by the indoor heat exchanger 500 in the air duct 110 flows out through the first air outlet duct 471, since the first air outlet duct 471 surrounds the return air inlet 474, that is, the first air outlet duct 471 is an annular air duct, the gas flowing out through the first air outlet duct 471 forms a 360° annular air outlet effect without dead angles.

[0065] Furthermore, since the first air outlet duct 471 has a horizontal air duct section 4711 extending in the horizontal direction, the gas flowing out from the first air outlet duct 471 flows out through the horizontal air duct section 4711, forming a horizontal air outlet effect.

[0066] Therefore, when the gas in the air duct 110, after being heated by the indoor heat exchanger 500, flows out through the first air outlet duct 471, it forms a 360° ring-shaped and horizontal air outlet effect without dead angles, achieving a "wind avoids people" blowing effect and improving the user experience.

[0067] The panel assembly 400 also forms a second air outlet duct 472. The second air outlet duct 472 is located between the return air inlet 474 and the first air outlet duct 471. An air guide plate 480 is provided within the second air outlet duct 472. The air guide plate 480 is configured to swing to adjust the air outlet direction. The air guide plate 480 is also configured to close the second air outlet duct 472.

[0068] When the gas that has been heated by the indoor heat exchanger 500 in the air duct 110 flows out through the second air outlet duct 472, the air outlet direction is adjusted by the swing of the air guide plate 480.

[0069] In one working mode, the ceiling-mounted indoor unit has the air guide plate 480 oscillating back and forth within the second air outlet duct 472 to achieve uniform air delivery within the blowing area.

[0070] In another working mode, the ceiling-mounted indoor unit has the air guide plate at a set angle position (480° stop) to achieve a fixed airflow angle, accelerating the rapid cooling or heating of the set airflow area.

[0071] In another working mode, the ceiling-mounted indoor unit closes the second air outlet duct 472 with the air guide plate 480, and at this time there is no air flowing out of the second air outlet duct 472.

[0072] The ceiling-mounted indoor unit in this embodiment has a first operating mode. (Refer to...) Figure 2In the first working mode, the ceiling indoor unit has the air guide plate 480 blocking the second air outlet duct 472, and the ceiling indoor unit horizontally discharges air from the first air outlet duct 471.

[0073] Specifically, in the first working mode, indoor air flows into the air duct 110 of the main body 100 through the return air vent 474, and then undergoes heat exchange through the indoor heat exchanger 500. The heat-exchanged air is then blown out horizontally from the first air outlet duct 471.

[0074] In the first operating mode, the ceiling-mounted indoor unit, with the second air outlet duct 472 closed, allows all the heat-exchanged air in the duct 110 to flow out through the first air outlet duct 471, enabling rapid cooling or heating. Furthermore, the air is blown horizontally out of the annular first air outlet duct 471, achieving 306° horizontal airflow without dead angles and "wind avoidance of people," improving the user experience.

[0075] The ceiling-mounted indoor unit in this embodiment has a second operating mode. (Refer to...) Figure 3 In the second working mode, the air guide plate 480 opens the second air outlet duct 472, and the ceiling indoor unit simultaneously outputs air from the first air outlet duct 471 and the second air outlet duct 472.

[0076] Specifically, in the second working mode, indoor air flows into the air duct 110 of the main body 100 through the return air vent 474, and then undergoes heat exchange through the indoor heat exchanger 500. After heat exchange, part of the air is blown out horizontally from the first air outlet duct 471, and the other part is blown out from the second air outlet duct 472. The air outlet direction of the second air outlet duct 472 is adjusted by the swing of the air guide plate 480.

[0077] In the second working mode, the ceiling indoor unit simultaneously outputs air from the first air outlet duct 471 and the second air outlet duct 472, achieving a double-layer air output effect. While achieving 306° horizontal airflow without dead angles and "wind avoids people" airflow effect, it can also blow airflow to a larger area to achieve cooling or heating in a larger area.

[0078] In some embodiments of this application, panel assembly 400 includes an upper panel 410. Figure 9 This is a structural diagram of the upper panel 410. (Refer to...) Figure 2 and Figure 8 The upper panel 410 is fixedly disposed below the main body 100. For example, the upper panel 410 is fixedly disposed below the main body 100 by means of screws, clips, etc.

[0079] The outer contour of the upper panel 410 is circular. The upper panel 410 is provided with an upper return air vent 412, which is connected to the return air side of the air duct 110.

[0080] The upper panel 410 is provided with an upper air outlet 411, which is connected to the air outlet side of the air duct 110 inside the main body 100.

[0081] Multiple upper air outlets 411 are provided, and the multiple upper air outlets 411 are arranged around the upper return air outlet 412. For example, the upper panel 410 is provided with four upper air outlets 411, and the four upper air outlets 411 are arranged around the upper return air outlet 412.

[0082] The panel assembly 400 also includes a lower panel 420. Figure 10 This is a structural diagram of the lower panel 420. (Refer to...) Figure 2 and Figure 8 The lower panel 420 is fixedly disposed below the upper panel 410. For example, the lower panel 420 is fixedly disposed below the lower panel 410 by means of screws, clips, etc.

[0083] The lower panel 420 has a circular outer contour. The lower panel 420 is provided with a lower return air vent 422. The lower return air vent 422 is connected to the upper return air vent 412. Indoor air flows sequentially through the lower return air vent 422 and the upper return air vent 412 into the air duct 110.

[0084] The lower panel 420 is provided with a lower air outlet 421. The lower panel 420 is provided with multiple lower air outlets 421, which are arranged around the lower return air outlet 422. For example, the lower panel 420 is provided with four lower air outlets 421, which are arranged around the lower return air outlet 422.

[0085] The lower panel 420 has an extension 424. The extension 424 extends into the upper air outlet 411 to divide the upper air outlet 411 into a first sub-upper air outlet 4111 and a second sub-upper air outlet 4112.

[0086] The first upper air outlet 4111 and the second upper air outlet 4112 are arranged sequentially in a direction away from the upper return air outlet 412. The first upper air outlet 4111 and the second upper air outlet 4112 are arranged to the left and right, with the first upper air outlet 4111 closer to the upper return air outlet 412 and the second upper air outlet 4112 further away from the upper return air outlet 412.

[0087] The first upper air outlet 4111 is connected to the lower air outlet 421, and the first upper air outlet 4111 and the lower air outlet 421 form the second air outlet duct 472.

[0088] A first air outlet duct 471 extending horizontally and in a ring shape is formed between the upper panel 410 and the lower panel 420, and the first air outlet duct 471 is connected to the second upper air outlet 4112.

[0089] The panel assembly 400 consists of an upper panel 410 and a lower panel 420. An extension 424 on the lower panel 420 extends into the upper air outlet 411 to form two sub-air outlets arranged to the left and right, thereby forming two air outlets, one for horizontal air outlet and the other for downward air outlet. The assembly of the upper panel 410 and the lower panel 420 defines the air ducts for the two air outlets.

[0090] The first air outlet duct 471 is located outside the second air outlet duct 472. The horizontal air outlet duct section 4711 is formed by the gap between the upper panel 410 and the lower panel 420, eliminating the need for additional duct structures and simplifying the structure while achieving 306° horizontal airflow without dead angles.

[0091] In some embodiments of this application, the air guide plate 480 is located inside the lower air outlet 421. The lower air outlet 421 is located at the air outlet end of the second air outlet duct 472. Placing the air guide plate 480 inside the lower air outlet 421 makes it easier to adjust the air outlet direction, resulting in a better airflow adjustment effect.

[0092] In some embodiments of this application, reference is made to Figure 5 The upper panel 410 is provided with a drive unit, which is connected to the air guide plate 480 and is configured to drive the air guide plate 480 to swing.

[0093] For example, the drive unit is a motor 430, and the power shaft of the motor 430 is connected to the end of the air guide plate 480. When the power shaft of the motor 430 rotates, it drives the air guide plate 480 to swing. For example, the motor 430 is a stepper motor.

[0094] In some embodiments of this application, the ceiling-mounted indoor unit includes multiple air guide vanes 480, each of which is equipped with a drive unit to achieve independent control of each air guide vane 480.

[0095] In one working mode, multiple drive units of the ceiling indoor unit move synchronously, and multiple air guide plates 480 are adjusted synchronously to enable multiple secondary air outlet ducts 472 to open or close simultaneously.

[0096] In another working mode, the ceiling-mounted indoor unit has multiple drive units moving asynchronously and multiple air guide plates 480 independently adjusted to achieve the air outlet effect of opening some of the multiple second air outlet ducts 472 and closing others.

[0097] In some embodiments of this application, reference is made to Figure 9 The upper panel 410 is provided with a first mounting groove 414, which is located on the end side of the upper air outlet 411. The motor 430 is disposed in the first mounting groove 414.

[0098] In some embodiments of this application, reference is made to Figure 8The extension 424 is arc-shaped and extends upward from the main body of the lower panel 420. The extension 424 forms a sidewall of the lower air outlet 421.

[0099] The upper air outlet 411 has a first arc-shaped inner wall 413, which extends upward in an arc shape from the main body of the upper panel 410. An arc-shaped second sub-upper air outlet 4112 is formed between the first arc-shaped inner wall 413 and the extension 424.

[0100] The lower air outlet 421 has a second arc-shaped inner wall 423, and an arc-shaped lower air outlet 421 is formed between the second arc-shaped inner wall 423 and the extension 424.

[0101] The arc-shaped extension 424, the first arc-shaped inner wall 413, and the second arc-shaped inner wall 423 form an arc-shaped air outlet channel through the arc structure, which further guides the air outlet, improves the air outlet smoothness, and helps to reduce wind resistance and air outlet noise.

[0102] In some embodiments of this application, reference is made to Figure 5 A filter 450 is installed at the lower return air vent 422, and the filter 450 is configured to filter the return air.

[0103] In some embodiments of this application, reference is made to Figure 9 The upper panel 410 is provided with a first auxiliary air outlet duct 419, and the first auxiliary air outlet duct 419 is provided between every two adjacent upper air outlets 411.

[0104] Reference Figure 10 A second auxiliary air outlet duct 427 is provided inside the lower panel 420, and a second auxiliary air outlet duct 427 is provided between every two adjacent lower air outlets 421.

[0105] The first auxiliary air outlet duct 419 is connected to the second auxiliary air outlet duct 427, and is also connected to the air outlet side of the air outlet duct 110.

[0106] In other words, the first auxiliary air outlet duct 419 and the second auxiliary air outlet duct 427 constitute the auxiliary air outlet duct 473, and the auxiliary air outlet duct 473 and the second air outlet duct 472 constitute the lower air outlet duct, while the first air outlet duct 471 is the upper air outlet duct.

[0107] Taking a ceiling-mounted indoor unit with four secondary air outlet ducts 472 and four auxiliary air outlet ducts 473 as an example, the four auxiliary air outlet ducts 473 make up for the dead air outlets at the four corners of the four secondary air outlet ducts 472, and the lower air outlet duct can also form a 360° circular air outlet effect.

[0108] In some embodiments of this application, a first heat-insulating member 441 is provided inside the first auxiliary air outlet duct 419, and a plurality of first air outlet channels 442 are formed inside the first heat-insulating member 441. The first air outlet channels 442 are connected to the air outlet side of the air duct 110. The first heat-insulating member 441 provides a heat-insulating effect. The plurality of first air outlet channels 442 provide a flow equalization effect.

[0109] A second insulation component 443 is installed inside the second auxiliary air outlet duct 427, and multiple second air outlet channels 444 are formed within the second insulation component 443. The second insulation component 443 provides insulation. The multiple second air outlet channels 444 provide airflow equalization.

[0110] Multiple first air outlet channels 442 are connected to multiple second air outlet channels 444, and auxiliary air outlet channel 473 connects air duct 110 to the outside.

[0111] The first insulation component 441 and the second insulation component 443 can be collectively referred to as insulation component 440. Insulation component 440 not only serves the function of heat preservation, but its internal air outlet channel also has a flow equalization effect, forming an air outlet microchannel 445.

[0112] In some embodiments of this application, the first auxiliary air outlet duct 419 is an upper mounting groove 415, and the first insulation member 441 is installed in the upper mounting groove 415. Similarly, the second auxiliary air outlet duct 427 is a lower mounting groove 425, and the second insulation member 443 is installed in the lower mounting groove 425.

[0113] The bottom of the upper mounting groove 415 limits the upper part of the second insulation component 443, thereby limiting the second insulation component 443 within the lower mounting groove 425.

[0114] The upper mounting slot 415 is positioned close to the first mounting slot 414. (Refer to...) Figure 5 The upper panel 410 is provided with a first cover plate 416, which covers the first mounting groove 414 and the upper mounting groove 415 to limit and block the first insulation component 441 and the motor 430.

[0115] In some embodiments of this application, reference is made to Figure 4 and Figure 7 The lower panel 420 is provided with a second cover plate 426, which covers the air outlet microchannel 445. The second cover plate 426 is provided with an air outlet hole.

[0116] In some embodiments of this application, reference is made to Figure 4 and Figure 7 The lower panel 420 is provided with a grille 460, which covers the filter 450.

[0117] In some embodiments of this application, a foaming element 491 is provided at the upper air outlet 411, and the foaming element 491 is configured to prevent condensation at the upper air outlet 411.

[0118] In some embodiments of this application, a sealing gasket 492 is provided above the foam component 491, and the sealing gasket 492 is configured to prevent air leakage between the panel assembly 400 and the main body 100.

[0119] In some embodiments of this application, reference is made to Figure 1 The main body 100 is provided with a refrigerant pipe 300. The connection point of the refrigerant pipe 300 is located above the upper panel 410. The upper panel 410 is configured to collect dripping refrigerant oil droplets.

[0120] In other words, the upper panel 410 not only serves to create a horizontal air outlet section, but also acts as an oil catcher.

[0121] In some embodiments of this application, reference is made to Figure 9 Multiple reinforcing ribs 417 are provided on the upper side of the upper panel 410 to improve the structural strength.

[0122] Adjacent reinforcing ribs 417 form a water-collecting trough 418 for collecting dripping liquid and preventing the collected liquid from flowing out.

[0123] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0124] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A ceiling-mounted indoor unit, comprising: The main body has internal air ducts. An indoor heat exchanger, located within the air duct, is configured to exchange heat with the flowing air. The fan is configured to provide power for airflow. characterized in that It also includes: A panel assembly, connected to the main body, includes: The upper panel is located below the main body and has an upper air outlet that is connected to the air outlet side of the air duct. The lower panel is disposed below the upper panel. The lower panel has a lower air outlet and an extension that extends into the upper air outlet to divide the upper air outlet into a first sub-upper air outlet and a second sub-upper air outlet. The first sub-upper air outlet communicates with the lower air outlet. A first air outlet duct that extends horizontally and is annular is formed between the upper panel and the lower panel. The first air outlet duct communicates with the second sub-upper air outlet.

2. The ceiling-mounted indoor unit according to claim 1, characterized in that, A guide plate is provided in the second air outlet duct formed by the first upper air outlet and the lower air outlet. The guide plate is configured to rotate to adjust the air outlet direction of the second air outlet duct.

3. The ceiling-mounted indoor unit according to claim 2, characterized in that, In the first operating mode, the ceiling-mounted indoor unit closes the second air outlet duct with the air guide plate, and the ceiling-mounted indoor unit discharges air horizontally from the first air outlet duct.

4. The ceiling-mounted indoor unit according to claim 2, characterized in that, In the second working mode, the air guide plate opens the second air outlet duct of the ceiling indoor unit, and the ceiling indoor unit simultaneously outputs air from the first air outlet duct and the second air outlet duct.

5. The ceiling-mounted indoor unit according to claim 2, characterized in that, The upper panel is provided with a driving unit, which is connected to the air guide plate and is configured to drive the air guide plate to swing.

6. The ceiling-mounted indoor unit according to claim 1, characterized in that, The extension is arc-shaped; The upper air outlet has a first arc-shaped inner wall, and an arc-shaped second sub-upper air outlet is formed between the first arc-shaped inner wall and the extension. The lower air outlet has a second arc-shaped inner wall, and the second arc-shaped inner wall and the extension form an arc-shaped lower air outlet.

7. The ceiling-mounted indoor unit according to any one of claims 1 to 6, characterized in that, The upper panel is provided with an upper return air inlet, the lower panel is provided with a lower return air inlet, the return air side of the air duct, the upper return air inlet and the lower return air inlet are connected, and a filter screen is provided inside the lower return air inlet; The upper panel is provided with four upper air outlets, and the lower panel is provided with four lower air outlets, with the four upper air outlets corresponding to the four lower air outlets.

8. The ceiling-mounted indoor unit according to claim 7, characterized in that, The upper panel is provided with a first auxiliary air outlet duct, and the first auxiliary air outlet duct is provided between every two adjacent upper air outlets; The lower panel is provided with a second auxiliary air outlet duct, and the second auxiliary air outlet duct is provided between every two adjacent lower air outlets; The first auxiliary air outlet duct is connected to the second auxiliary air outlet duct and is also connected to the air outlet side of the duct.

9. The ceiling-mounted indoor unit according to any one of claims 1 to 6, characterized in that, The main body is provided with a refrigerant pipeline, and the connection point of the refrigerant pipeline is located above the upper panel. The upper panel is configured to collect dripping refrigerant oil droplets.

10. A ceiling cased indoor unit, characterized by, Including: The main body has internal air ducts. An indoor heat exchanger, located within the air duct, is configured to exchange heat with the flowing air. Its characteristic is that it further includes: A panel assembly, connected to the main body, is formed having: The return air vent is connected to the return air side of the air duct; The first air outlet duct is connected to the air outlet side of the duct, the first air outlet duct surrounds the return air inlet, and the first air outlet duct has a horizontal duct section extending in the horizontal direction. The second air outlet duct is located between the return air inlet and the first air outlet duct. A guide vane is installed in the second air outlet duct to adjust the air outlet direction.

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