Ceiling machine

Abstract

The application discloses a ceiling machine, which comprises a main body frame, an air outlet assembly and a lifting mechanism, the air outlet assembly is connected to the main body frame through the lifting mechanism, a first air outlet is formed between the air outlet assembly and the main body frame through lowering, the ceiling machine further comprises a first wind blocking part and a second wind blocking part, the first wind blocking part is located between an air outlet duct and an air return port, and the first wind blocking part is provided with a containing groove; the second wind blocking part is arranged on the air outlet assembly, the second wind blocking part is located between the air outlet duct and the air return port, a first end of the second wind blocking part is connected to the air outlet assembly, and a second end of the second wind blocking part is movably arranged in the containing groove. The ceiling machine is provided with the first wind blocking part and the second wind blocking part, the containing groove is arranged on the first wind blocking part, the second end of the second wind blocking part is movably arranged in the containing groove, the airflow flow between the air return port and the air outlet port is blocked, the air outlet is prevented from entering the air return port from the movement gap, and the generation of condensation is avoided.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, specifically to a ceiling-mounted air conditioning unit. Background Technology

[0002] Ceiling-mounted joists, also known as ceiling-mounted or joist systems, are widely used due to their space-saving and aesthetically pleasing design.

[0003] Currently, ceiling-mounted air conditioners often use a method where the air outlets are located on the frame, typically four in number. Air is directed from the ceiling into the room at specific angles, meaning air is delivered in four directions along the angles set at each of the four outlets. However, because the air outlets form an angle with the horizontal plane of the ceiling, and the airflow direction is limited, when the air conditioner is in cooling mode, the cold air blows directly downwards. If someone is near the air conditioner, the cold air will blow directly onto their body, reducing comfort.

[0004] To address this issue, a ceiling-mounted air conditioner with a liftable air outlet component has been developed. This ceiling-mounted air conditioner includes a main frame mounted on the ceiling and an air outlet component. The air outlet component is mounted on the main frame via a lifting mechanism. When the air conditioner is discharging air, the air outlet component descends relative to the main frame under the action of the lifting mechanism. After the air outlet component descends, its outer edge and the inner edge of the main frame form a horizontal air outlet, allowing the air to blow horizontally and achieve waterfall-style cooling, thus improving user comfort.

[0005] However, in order to ensure smooth lifting and lowering, a gap must be maintained between the lifting assembly and the main frame. Due to the existence of this gap, the air outlet will connect with the return air outlet through the gap, which will cause the air outlet to enter the return air outlet through the gap, easily causing condensation. Therefore, how to ensure smooth lifting and lowering while preventing the air outlet from entering the return air outlet is a problem that urgently needs to be solved in this technical field. Summary of the Invention

[0006] This invention discloses a ceiling fan that solves the problem of condensation caused by air entering the return air inlet through the movement gap between the air outlet component and the main frame.

[0007] According to one aspect of the present invention, a ceiling fan is disclosed, comprising a main frame, an air outlet assembly, and a lifting mechanism. An air outlet duct is formed within the main frame. The air outlet assembly is connected to the main frame via the lifting mechanism. The air outlet assembly forms a first air outlet between itself and the main frame as it descends. The ceiling fan further comprises: a first windbreak portion disposed on the main frame, located between the air outlet duct and the return air inlet, and having a receiving groove; and a second windbreak portion disposed on the air outlet assembly, located between the air outlet duct and the return air inlet, with a first end connected to the air outlet assembly and a second end movably disposed within the receiving groove. When the air outlet assembly descends to its working position, the first windbreak portion and the second windbreak portion cooperate to isolate the airflow between the return air inlet and the first air outlet.

[0008] Furthermore, the opening of the receiving groove is oriented towards the downward direction of the air outlet assembly, and the second windbreak portion passes through the opening.

[0009] Furthermore, a sealing structure is provided between the slot and the second windbreak.

[0010] Furthermore, the sealing structure is a sealing brush.

[0011] Furthermore, the first windbreak and the second windbreak cooperate to form a labyrinth sealing structure.

[0012] Furthermore, the second end of the second windbreak has a stepped structure, and the stepped structure, the slot, and the inner wall of the receiving groove together form the labyrinth sealing structure.

[0013] Furthermore, a sealing protrusion is provided on the wall of the receiving groove. When the air outlet assembly descends to the working position, the sealing protrusion abuts or overlaps with the stepped structure to form a cooperation, thereby isolating the return air port and the first air outlet.

[0014] Furthermore, the ceiling machine has an air outlet duct, and the first windbreak part has a first side surface located on the air outlet duct. The first side surface is a guide surface, which is used to guide the air outlet to the first air outlet.

[0015] Furthermore, the ceiling machine also has a return air duct, and the first windbreak part also has a second side located inside the return air duct, on which the lifting mechanism is installed.

[0016] Furthermore, the first windbreak is an annular structure arranged along the outer periphery of the return air inlet, and the receiving groove is an annular groove.

[0017] Furthermore, it also includes: a heat insulation layer, which is disposed on the inner wall of the receiving groove and / or on the second windbreak.

[0018] Furthermore, the air outlet assembly includes an air outlet frame, and a first air outlet is formed between the air outlet frame and the main frame. The air outlet frame can be raised and lowered independently.

[0019] Furthermore, the air outlet assembly includes an air outlet frame and a return air panel. A first air outlet is formed between the air outlet frame and the main frame. The return air panel is provided with a return air outlet. The air outlet frame and the return air panel are connected and rise and fall together.

[0020] Furthermore, the air outlet assembly is provided with at least one second air outlet, which is connected to the air outlet duct;

[0021] When the air outlet assembly descends to the working position, the first wind deflector and the second wind deflector cooperate to isolate the airflow between the return air inlet and the first air outlet, and between the return air inlet and the second air outlet.

[0022] Furthermore, when the air outlet component forms the first air outlet by descending and being positioned between itself and the main frame, a gap is formed between the air outlet component and the main frame, and the gap forms an air supply duct. One end of the air supply duct is connected to the air outlet duct, and the other end of the air supply duct forms the first air outlet.

[0023] Furthermore, the main frame also includes a frame. When the air outlet component descends to form the first air outlet between itself and the main frame, the air outlet component and the frame form the air supply duct. On the mounting plane of the main frame, the projection of the air outlet component and the projection of the frame at least partially overlap.

[0024] Furthermore, the hoist has a first air outlet mode, a second air outlet mode, and a third air outlet mode; when the hoist is in the first air outlet mode, the first air outlet is open and the second air outlet is closed; when the hoist is in the second air outlet mode, the first air outlet is open and some or all of the second air outlets are open; when the hoist is in the third air outlet mode, the first air outlet is closed and some or all of the second air outlets are open.

[0025] Furthermore, when the ceiling fan is in cooling mode, it is in either the first air outlet mode or the second air outlet mode; when the ceiling fan is in heating mode, it is in either the third air outlet mode or the second air outlet mode.

[0026] The ceiling fan of the present invention is provided with a first windbreak and a second windbreak. A receiving groove is provided on the first windbreak, and the second end of the second windbreak is movably disposed in the receiving groove. When the air outlet assembly is lowered to the working position, the first windbreak and the second windbreak can cooperate to isolate the airflow between the return air port and the air outlet, prevent the air outlet from entering the return air port through the movement gap, and avoid the generation of condensation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the well machine according to Embodiment 1 of the present invention;

[0028] Figure 2 This is a schematic diagram of the air outlet assembly of the ceiling fan in Embodiment 1 of the present invention descending to the working position;

[0029] Figure 3 This is a schematic diagram of the first air outlet mode of the ceiling fan in Embodiment 2 of the present invention;

[0030] Figure 4 This is a schematic diagram of the second air outlet mode of the ceiling fan in Embodiment 2 of the present invention.

[0031] Legend: 10. Main frame; 11. Air outlet duct; 12. Air supply duct; 13. Frame; 20. Air outlet assembly; 31. First air outlet; 32. Second air outlet; 40. First windbreak; 41. Receiving groove; 411. Groove opening; 412. Sealing protrusion; 42. Air guide surface; 43. Sealing structure; 50. Second windbreak; 51. Step structure; 60. Lifting mechanism. Detailed Implementation

[0032] The present invention will be further described below with reference to embodiments, but is not limited to the contents of the specification.

[0033] like Figure 1 and Figure 2The first embodiment of the present invention, as shown, discloses a ceiling fan, including a main frame 10, an air outlet assembly 20, a first windbreak 40, a second windbreak 50, and a lifting mechanism 60. An air outlet duct 11 is formed within the main frame 10. The air outlet assembly 20 is connected to the main frame 10 via the lifting mechanism 60. The air outlet assembly 20 forms a first air outlet 31 between itself and the main frame 10 as it descends. The first windbreak 40 is disposed on the main frame 10 and is located between the air outlet duct 11 and... Between the return air inlets, the first wind baffle 40 has a receiving groove 41; the second wind baffle 50 is disposed on the air outlet assembly 20, the second wind baffle 50 is located between the air outlet duct 11 and the return air inlet, the first end of the second wind baffle 50 is connected to the air outlet assembly 20, and the second end of the second wind baffle 50 is movably disposed in the receiving groove 41; when the air outlet assembly 20 is lowered to the working position, the first wind baffle 40 and the second wind baffle 50 cooperate to isolate the airflow between the return air inlet and the first air outlet 31.

[0034] The ceiling fan of the present invention is provided with a first windbreak part 40 and a second windbreak part 50. A receiving groove 41 is provided on the first windbreak part 40. The second end of the second windbreak part 50 is movably disposed in the receiving groove 41. When the air outlet assembly 20 is lowered to the working position, the first windbreak part 40 and the second windbreak part 50 can form a cooperation, thereby isolating the airflow between the return air port and the first air outlet 31, preventing the air outlet from entering the return air port through the movement gap, and avoiding the generation of condensation.

[0035] It should be noted that the main frame 10 is the main load-bearing structure of the joist unit. During installation, the main frame 10 is used to mount the joist unit on the ceiling. Other structures can be directly or indirectly mounted on the main frame 10 and fixed to the ceiling through the main frame 10. The joist unit has an indoor unit installed inside the ceiling. The main frame 10 is connected to the indoor unit, and the air outlet assembly 20 is connected to the main frame 10. The indoor unit has an indoor unit exhaust vent, and the air outlet duct 11 of the main frame 10 is connected to the indoor unit exhaust vent. The airflow path is: return air inlet - evaporator - indoor unit exhaust vent - air outlet duct 11 - air blown out from the exhaust vent.

[0036] like Figure 1 and Figure 2 As shown, the opening 411 of the receiving groove 41 is oriented towards the downward direction of the air outlet assembly 20, and the second baffle 50 passes through the opening 411. When the air outlet assembly 20 rises, most of the second baffle 50 is retracted into the receiving groove 41, thereby saving space. When the air outlet assembly 20 descends, the second baffle 50 descends, causing a portion of the second baffle 50 to extend out of the receiving groove 41, while the other portion remains inside the receiving groove 41, thereby isolating the airflow between the return air vent and the first air outlet 31.

[0037] Furthermore, a sealing structure 43 is provided between the slot 411 and the second windbreak 50. By providing a sealing structure 43 between the slot 411 and the second windbreak 50, airflow can be effectively prevented from passing between the slot 411 and the second windbreak 50, thereby preventing airflow from entering the return air vent from the outlet.

[0038] Preferably, in order to reduce the resistance of the sealing structure 43 to the second windbreak 50 while sealing, the sealing structure 43 is a sealing brush. By setting the sealing bristles, the gap between the slot 411 and the second windbreak 50 can be sealed at the same time, and the resistance can be reduced. Moreover, the second windbreak 50 can be cleaned during each lifting and lowering process to prevent dust accumulation. It is a multi-purpose product.

[0039] The first windbreak part 40 and the second windbreak part 50 cooperate to form a labyrinth sealing structure, wherein the labyrinth sealing structure is as follows: Figure 2 As shown by the arrow, by combining the first windbreak part 40 and the second windbreak part 50 to form a labyrinth sealing structure, the length of the movement gap can be increased, thereby increasing the resistance to airflow and thus achieving the purpose of blocking airflow.

[0040] Specifically, the second end of the second windbreak 50 has a stepped structure 51, which, together with the groove 411 and the inner wall of the receiving groove 41, forms a labyrinth sealing structure. By setting the stepped structure 51 at the second end of the second windbreak 50, the stepped structure 51, the groove 411, and the inner wall of the receiving groove 41 together form a labyrinth sealing structure. When the airflow passes between the second windbreak 50 and the first windbreak 40, the flow distance increases, and there are multiple bends in the airflow path, which greatly increases the flow resistance of the airflow, causing the airflow to gradually decrease, thereby achieving the purpose of isolating the airflow.

[0041] Furthermore, a sealing protrusion 412 is provided on the wall of the receiving groove 41. When the air outlet assembly 20 descends to the working position, the sealing protrusion 412 abuts or overlaps with the stepped structure 51 to form a cooperation, thereby isolating the return air port and the first air outlet 31. By providing the sealing protrusion 412, it can cooperate with the stepped structure 51 to completely isolate the movement gap between the air outlet assembly 20 and the main frame 10, thereby preventing airflow from passing through.

[0042] The ceiling fan has an air outlet duct 11, and a first windbreak part 40 has a first side surface located on the air outlet duct 11. The first side surface is a guide surface 42, which is used to guide the air outlet to the first air outlet 31. By setting the guide surface 42, the first windbreak part 40 can not only block the airflow, but also guide the air outlet in the ceiling fan's air outlet duct 11 to the first air outlet 31, thereby reducing the generation of eddies and improving the air outlet efficiency. It is a typical example of a multi-purpose device.

[0043] Furthermore, the ceiling fan also features a return air duct, and the first windbreak part 40 has a second side located within the return air duct, on which a lifting mechanism 60 is installed. The first windbreak part 40 not only blocks the airflow within the movement gap and provides airflow guidance, but also serves as an assembly structure for the lifting mechanism 60. The lifting mechanism 60 can be assembled onto the first windbreak part 40, which makes the internal structure of the ceiling fan more compact and the internal layout more rational.

[0044] The first windbreak part 40 is an annular structure arranged around the outer periphery of the return air inlet, and the receiving groove 41 is an annular groove. The first air outlet 31 of the ceiling machine is mostly around the return air inlet. In order to improve the wind-blocking effect, the first windbreak part 40 is also an annular structure. The annular structure surrounds the return air inlet and is located between the first air outlet 31 and the return air inlet. The receiving groove 41 is an annular groove opened on the annular structure. The second windbreak part 50 is also an annular structure, which cooperates with the annular groove to form a 360° wind-blocking structure.

[0045] To prevent heat loss, the ceiling system also includes an insulation layer, which is installed on the inner wall of the receiving tank 41 and / or the second windbreak 50. This effectively prevents heat loss through heat transfer and avoids condensation.

[0046] In this embodiment, the air outlet assembly 20 includes an air outlet frame, and a first air outlet 31 is formed between the air outlet frame and the main frame 10. The air outlet frame can be raised and lowered independently.

[0047] In another embodiment not shown in the figure, the air outlet assembly 20 includes an air outlet frame and a return air panel. A first air outlet 31 is formed between the air outlet frame and the main frame 10. The return air panel is provided with a return air outlet. The air outlet frame and the return air panel are connected and rise and fall together.

[0048] It should be noted that the lifting mechanism 60 includes a transmission mechanism and a drive device. The transmission mechanism is connected between the main frame 10 and the air outlet assembly 20, and the drive device is driven by the transmission mechanism, thereby driving the transmission mechanism to lift the air outlet assembly 20. There can be multiple transmission mechanisms; in this embodiment, there are four transmission mechanisms, located at the four corners of the ceiling machine to ensure uniform force distribution. Preferably, the transmission mechanism can employ a belt drive structure, a rack and pinion drive structure, or a guide rail structure.

[0049] It should also be noted that in this embodiment, the driving device is a single motor, and each motor drives one transmission mechanism. However, the coordination between the motor and the transmission mechanism is not limited to this. In another embodiment (not shown in the figure), the other structures are the same as in this embodiment, except that one motor drives two transmission mechanisms, thereby reducing the number of motors and lowering costs. Similarly, one motor can also drive four lifting transmission mechanisms simultaneously, thereby further saving manufacturing costs.

[0050] according to Figure 3 and Figure 4 The second embodiment also discloses a ceiling fan, which has a structure that is basically the same as that of the first embodiment. The difference is that at least one second air outlet 32 ​​is provided on the air outlet assembly 20, and the second air outlet 32 ​​is connected to the air outlet duct 11. When the air outlet assembly 20 is lowered to the working position, the first wind baffle 40 and the second wind baffle 50 cooperate to isolate the airflow between the return air port and the first air outlet 31, and between the return air port and the second air outlet 32.

[0051] The ceiling fan of the present invention is provided with a first windbreak part 40 and a second windbreak part 50. A receiving groove 41 is provided on the first windbreak part 40. The second end of the second windbreak part 50 is movably disposed in the receiving groove 41. When the air outlet assembly 20 is lowered to the working position, the first windbreak part 40 and the second windbreak part 50 can form a cooperation, thereby isolating the airflow between the return air port and the first air outlet 31, and between the return air port and the second air outlet 32, preventing the air outlet from entering the return air port through the movement gap, and avoiding the generation of condensation.

[0052] The first air outlet 31 allows the ceiling fan to direct airflow to a distance, even horizontally or at an angle upwards, overcoming the problem of cold air blowing downwards and directly onto the human body in existing technologies. Simultaneously, the second air outlet 32 ​​enables the ceiling fan to meet the requirements of angled downwards or even vertical downwards. Furthermore, the combination of the first and second air outlets 31 increases the number of air outlet methods available for the ceiling fan, thereby improving its airflow effect and enhancing the precision and speed of temperature regulation.

[0053] It should be noted that the main frame 10 is the main load-bearing structure of the ceiling hoist. During the installation of the ceiling hoist, the main frame 10 is used to install it on the ceiling. Other structures can be directly or indirectly installed on the main frame 10 and fixed to the ceiling through the main frame 10.

[0054] When the air outlet assembly 20 descends and forms the first air outlet 31 between itself and the main frame 10, a gap is formed between the air outlet assembly 20 and the main frame 10, forming an air supply duct 12. One end of the air supply duct 12 is connected to the air outlet duct 11, and the other end of the air supply duct 12 forms the first air outlet 31. The airflow in the air outlet duct 11 is guided by the air supply duct 12 and then blown out through the first air outlet 31. The air supply duct 12 guides the vertically downward airflow in the air outlet duct 11 into a direction that is roughly horizontal and away from the ceiling machine, or even tilted upward relative to the horizontal plane, thereby achieving horizontal airflow to the ceiling machine.

[0055] In the prior art, ceiling fans all use vents on the surface facing the ground to deliver air. To change the direction of the airflow, a guide vane is installed at the vent. However, on the mounting plane of the ceiling fan, the projection of the guide vane does not coincide with the projection of the ceiling fan panel, resulting in poor airflow guidance and ultimately reducing the air delivery distance of the ceiling fan. To address this, the main frame 10 of this application also includes a frame 13. When the air outlet component 20 descends to form the first air outlet 31 between itself and the main frame 10, the air outlet component 20 and the frame 13 form the air delivery duct 12. On the mounting plane of the main frame 10 (such as the ceiling), the projection of the air outlet component 20 and the projection of the frame 13 at least partially coincide. When the projection of the air outlet component 20 coincides with the projection of the frame 13, it effectively extends the air outlet component 20 compared to the prior art, resulting in better horizontal blowing effect of the ceiling fan and increased air delivery distance. When the ceiling fan opens the first air outlet 31, the air outlet component 20 gradually moves away from the main frame 10 to form the air delivery duct 12. At this time, the corresponding part of the air outlet component 20 forms the lower side of the air delivery duct 12. When the airflow passes through the air delivery duct 12, the airflow flows horizontally or even blows out in an upward tilting direction under the guiding effect of the lower side of the air delivery duct, thereby increasing the air delivery distance of the ceiling fan and achieving the effect of horizontal air outlet.

[0056] In another implementation, the projection of the air outlet assembly 20 completely overlaps with the projection of the frame 13. In this case, compared to the case where the projection of the air outlet assembly 20 partially overlaps with the projection of the frame 13, the air outlet assembly can be further extended, resulting in better horizontal blowing effect and a further increase in air delivery distance. Simultaneously, when the grout unit is in the off state, the air outlet assembly 20 is attached to the main frame 10, and the corresponding part of the air outlet assembly 20 is attached to the frame 13. When personnel observe the grout unit from the ground, they can only see the air outlet assembly 20 and not the main frame 10, effectively increasing the aesthetics of the grout unit. It should be noted that the grout unit has a first air outlet mode, a second air outlet mode, and a third air outlet mode.

[0057] When the well rig is in the first air outlet mode, the first air outlet 31 is opened and the second air outlet 32 ​​is closed. At this time, all the airflow in the air outlet duct is blown out through the first air outlet 31, which forms a horizontal air outlet or even an upward tilted air outlet.

[0058] When the well machine is in the second air outlet mode, the first air outlet 31 and the second air outlet 32 ​​are opened. At this time, part of the airflow in the air outlet duct is blown out through the first air outlet 31, and the rest is blown out through the second air outlet 32, realizing circumferential air supply and improving the uniformity of room temperature.

[0059] When the well rig is in the third air outlet mode, the first air outlet 31 is closed and the second air outlet 32 ​​is opened. At this time, all the airflow in the air outlet duct is blown out through the second air outlet 32, which forms a downward air outlet or even a vertical downward air outlet.

[0060] Based on the aforementioned air outlet patterns, the joist re-plans its heating and cooling modes. When the joist is in cooling mode, it operates in either the first or second air outlet mode. When the joist is in heating mode, it operates in either the third or second air outlet mode.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is impossible to exhaustively list all embodiments here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A ceiling fan, comprising a main frame (10), an air outlet assembly (20), and a lifting mechanism (60), wherein an air outlet duct (11) is formed within the main frame (10), the air outlet assembly (20) is connected to the main frame (10) via the lifting mechanism (60), and the air outlet assembly (20) forms a first air outlet (31) between itself and the main frame (10) by descending, characterized in that, The hoist also includes: The first windbreak (40) is disposed on the main frame (10). The first windbreak (40) is located between the air outlet duct (11) and the air return vent. The first windbreak (40) has a receiving groove (41). The second windbreak (50) is disposed on the air outlet assembly (20) and is located between the air outlet duct (11) and the return air inlet. The first end of the second windbreak (50) is connected to the air outlet assembly (20), and the second end of the second windbreak (50) is movably disposed in the receiving groove (41). The opening (411) of the receiving groove (41) is arranged facing the downward direction of the air outlet assembly (20), and the second windbreak (50) passes through the opening (411). The wind section (40) and the second windbreak section (50) cooperate to form a labyrinth sealing structure; the second end of the second windbreak section (50) has a stepped structure (51), the stepped structure (51), the slot (411), and the inner wall of the receiving groove (41) together form the labyrinth sealing structure; a sealing protrusion (412) is provided on the groove wall of the receiving groove (41), and when the air outlet assembly (20) descends to the working position, the sealing protrusion (412) abuts or overlaps with the stepped structure (51) to form a cooperation, so as to isolate the return air port and the first air outlet (31). When the air outlet assembly (20) descends to the working position, the first wind deflector (40) and the second wind deflector (50) cooperate to isolate the airflow between the return air inlet and the first air outlet (31).

2. The well machine according to claim 1, characterized in that, A sealing structure (43) is provided between the slot (411) and the second windbreak (50).

3. The well machine according to claim 2, characterized in that, The sealing structure (43) is a sealing brush.

4. The well machine according to claim 1, characterized in that, The ceiling machine has an air outlet duct (11), and the first wind baffle (40) has a first side surface located on the air outlet duct (11). The first side surface is a guide surface (42), which is used to guide the air outlet to the first air outlet (31).

5. The well machine according to claim 4, characterized in that, The ceiling machine also has a return air duct, and the first windbreak part (40) also has a second side located in the return air duct, on which the lifting mechanism (60) is installed.

6. The well machine according to claim 1, characterized in that, The first windbreak (40) is an annular structure arranged along the outer periphery of the return air inlet, and the receiving groove (41) is an annular groove.

7. The well machine according to claim 1, characterized in that, Also includes: The insulation layer is disposed on the inner wall of the receiving groove (41) and / or on the second windbreak (50).

8. The well machine according to claim 1, characterized in that, The air outlet assembly (20) includes an air outlet frame, and a first air outlet (31) is formed between the air outlet frame and the main frame (10). The air outlet frame can be raised and lowered independently.

9. The well machine according to claim 1, characterized in that, The air outlet assembly (20) includes an air outlet frame and a return air panel. A first air outlet (31) is formed between the air outlet frame and the main frame (10). The return air panel is provided with a return air outlet. The air outlet frame and the return air panel are connected and rise and fall together.

10. The well machine according to claim 1, characterized in that, The air outlet assembly (20) is provided with at least one second air outlet (32), and the second air outlet (32) is connected to the air outlet duct (11); When the air outlet assembly (20) descends to the working position, the first wind deflector (40) and the second wind deflector (50) cooperate to isolate the airflow between the return air inlet and the first air outlet (31) and between the return air inlet and the second air outlet (32).

11. The well machine according to claim 10, characterized in that, When the air outlet assembly (20) descends to form the first air outlet (31) between itself and the main frame (10), a gap is formed between the air outlet assembly (20) and the main frame (10), and the gap forms an air supply duct (12). One end of the air supply duct (12) is connected to the air outlet duct (11), and the other end of the air supply duct (12) forms the first air outlet (31).

12. The well machine according to claim 11, characterized in that, The main frame (10) also includes a side frame (13). When the air outlet component (20) forms the first air outlet (31) between itself and the main frame (10) by descending, the air outlet component (20) and the side frame (13) form the air supply duct (12). On the mounting plane of the main frame (10), the projection of the air outlet component (20) and the projection of the side frame (13) at least partially overlap.

13. The well machine according to claim 10, characterized in that, The ceiling fan has a first air outlet mode, a second air outlet mode, and a third air outlet mode; When the well machine is in the first air outlet mode, the first air outlet (31) is open and the second air outlet (32) is closed; When the well machine is in the second air outlet mode, the first air outlet (31) is opened, and some or all of the second air outlets (32) are opened; When the well machine is in the third air outlet mode, the first air outlet (31) is closed and the second air outlet (32) is partially or fully opened.

14. The well machine according to claim 13, characterized in that, When the ceiling fan is in cooling mode, the ceiling fan is in either the first air outlet mode or the second air outlet mode; When the ceiling fan is in heating mode, the ceiling fan is in either the third air outlet mode or the second air outlet mode.

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