Cavity machine

Abstract

This invention provides a ceiling fan, comprising a main frame and an air outlet assembly. A guide duct is provided on the main frame, with a first end connected to the air outlet duct and a second end forming a second air outlet. The ceiling fan provided by this invention divides the heat-exchanged airflow into two parts. One part of the airflow exits normally through the first air outlet, while the other part exits through the second air outlet guided by the guide duct. Because the airflow directions of the first and second air outlets are different, the airflows interact and ultimately form the airflow from the ceiling fan. Furthermore, since both the gas at the first and second air outlets are heat-exchanged gases, their mixing does not produce condensation or other problems, ensuring the reliability of the ceiling fan.

Description

Technical Field

[0001] This invention relates to the field of air handling equipment technology, and in particular to a ceiling-mounted air handling unit. Background Technology

[0002] Ceiling-mounted or recessed air conditioners, also known as ceiling-mounted units, are widely used due to their space-saving and aesthetically pleasing design.

[0003] In order to increase the air outlet range, existing ceiling air conditioners will install air guide plates at the air outlet to guide the airflow. However, when the opening angle of the air guide plate is too large, the user can see the internal structure of the ceiling air conditioner (such as air ducts) through the opening position of the air guide plate. Moreover, since the air guide plate needs to move relative to the main frame or air outlet components of the ceiling air conditioner, it is necessary to set a clearance gap between the air guide plate and the main frame or air outlet components when designing the air guide plate. When the air guide plate is closed, the clearance gap will form a black line on the surface of the ceiling air conditioner, causing the air guide plate to affect the appearance of the ceiling air conditioner. Summary of the Invention

[0004] To address the technical problem that the air guide plate affects the aesthetic appearance of the ceiling fan in the existing technology, a ceiling fan is provided that utilizes the different air outlet directions of the two heat exchange airflows to ensure the air outlet range.

[0005] A ceiling machine, comprising:

[0006] The main frame has an air outlet duct formed on it;

[0007] An air outlet assembly is provided, which is vertically and vertically mounted on the main frame. The air outlet assembly forms a first air outlet between itself and the main frame by descending, and the first air outlet is connected to the air outlet duct.

[0008] The main frame is provided with a guide air duct, the first end of the guide air duct is connected to the air outlet duct, and the second end of the guide air duct forms a second air outlet.

[0009] The air outlet direction of the first air outlet forms an angle with the air outlet direction of the second air outlet.

[0010] The air outlet duct has an inlet end and an outlet end, and a flow section located between the inlet end and the outlet end. The first air outlet is connected to the outlet end, and the first end of the guide duct is connected to the flow section.

[0011] The main framework includes:

[0012] shell;

[0013] An inner shell is disposed inside the outer shell, and the air outlet duct is formed between the inner shell and the outer shell;

[0014] The guide air duct is formed inside the outer casing.

[0015] The air outlet component forms an air supply duct between itself and the outer casing by descending. One end of the air supply duct is connected to the air outlet duct, and the other end forms the first air outlet. The second air outlet is connected to the air supply duct.

[0016] The outer casing has a first sidewall and a second sidewall. The first sidewall forms part of the sidewall of the air outlet duct, and the second sidewall forms part of the sidewall of the air supply duct. The first end of the guide duct is located on the first sidewall, and the second end of the guide duct is located on the second sidewall.

[0017] The ceiling machine also includes a guide fan, which is installed inside the guide air duct.

[0018] The guide fan includes a cross-flow fan blade, and the rotation axis of the cross-flow fan blade is parallel to the length direction of the first air outlet.

[0019] The rotational speed of the cross-flow fan blades is adjustable.

[0020] The air outlet assembly includes an air outlet frame, which forms an air outlet between itself and the main frame. The air outlet frame can be raised and lowered independently.

[0021] The air outlet assembly includes an air outlet frame and a return air panel. An 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.

[0022] The ceiling fan provided by this invention divides the heat-exchanged airflow into two parts. One part of the airflow is discharged normally through the first air outlet, while the other part is discharged through the second air outlet by the guidance of the guide duct. Since the airflow directions of the first and second air outlets are different, the airflows of the two will affect each other and ultimately form the airflow of the ceiling fan. Moreover, since the gas at the first and second air outlets is heat-exchanged gas, the mixing of the two will not produce problems such as condensation, ensuring the reliability of the ceiling fan. Furthermore, the airflow direction of the ceiling fan can be adjusted according to the airflow velocity, airflow rate, and height of the first air outlet, thereby achieving the same airflow range as ceiling fans with guide plates in the prior art, ensuring the airflow effect and aesthetics of the ceiling fan. Attached Figure Description

[0023] Figure 1 A cross-sectional view of the boom machine provided in an embodiment of the present invention;

[0024] In the picture:

[0025] 1. Main frame; 11. Air outlet duct; 2. Air outlet assembly; 10. First air outlet; 12. Guide duct; 20. Second air outlet; 111. Inlet end; 112. Outlet end; 113. Flow section; 13. Outer shell; 14. Inner shell; 21. Air supply duct; 131. First side wall; 132. Second side wall; 4. Guide fan. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0027] like Figure 1 The ceiling fan shown includes: a main frame 1, on which an air outlet duct 11 is formed; an air outlet assembly 2, which is vertically and flexibly mounted on the main frame 1, and forms a first air outlet 10 between the air outlet assembly 2 and the main frame 1 by descending, the first air outlet 10 being connected to the air outlet duct 11; a guide duct 12 is provided on the main frame 1, the first end of the guide duct 12 being connected to the air outlet duct 11, and the second end of the guide duct 12 forming a second air outlet 20; the air outlet direction of the first air outlet 10 and the air outlet direction of the second air outlet 20 form an angle. The heat-exchanged airflow is divided into two parts. One part of the airflow is discharged normally through the first air outlet 10, while the other part of the airflow is discharged through the second air outlet 20 through the guide air duct 12. Since the airflow directions of the first air outlet 10 and the second air outlet 20 are different, the airflows of the two will affect each other and eventually form the airflow of the joist. Moreover, since the gas in the first air outlet 10 and the gas in the second air outlet 20 are both heat-exchanged gases, their mixing will not produce condensation or other problems, ensuring the reliability of the joist. Furthermore, the airflow direction of the joist can be adjusted according to the airflow velocity, airflow rate, and height of the first air outlet 10, thereby achieving the same airflow range as joist systems with guide vanes in the prior art, ensuring the airflow effect of the joist.

[0028] It should be noted that the main frame 1 is the main load-bearing structure of the ceiling hoist. During the installation of the ceiling hoist, the main frame 1 is used to install it on the ceiling. Other structures can be directly or indirectly installed on the main frame 1 and fixed to the ceiling through the main frame 1. The ceiling-mounted air conditioner has an indoor unit installed inside the ceiling. The main frame 1 is connected to the indoor unit. Other structures include an air outlet assembly 2, which is connected to the main frame 1 and forms a first air outlet 10 with the main frame 1. The indoor unit has an indoor unit exhaust vent. The inlet end of the air outlet duct 11 of the main frame 1 is connected to the indoor unit exhaust vent. The air flow path is: return air inlet - evaporator - indoor unit exhaust vent - the inlet end of the air outlet duct 11 is divided into two parts. One part passes through the outlet end of the air outlet duct 11 and is blown out through the first air outlet 10. The other part passes through the first end and the second end of the guide duct 12 and can be blown directly out of the ceiling-mounted air conditioner. Alternatively, it can mix with the airflow about to flow out of the first air outlet 10 inside the ceiling-mounted air conditioner and finally be discharged through the first air outlet 10.

[0029] Specifically, the air outlet duct 11 has an inlet end 111 and an outlet end 112, and a flow section 113 located between the inlet end 111 and the outlet end 112. The first air outlet 10 is connected to the outlet end 112, and the first end of the guide duct 12 is connected to the flow section 113.

[0030] The main frame 1 includes: an outer shell 13; an inner shell 14, the inner shell 14 being disposed inside the outer shell 13, and the air outlet duct 11 being formed between the inner shell 14 and the outer shell 13; and the guide duct 12 being formed inside the outer shell 13. The inner shell 14 is used to separate the return air inlet and the air outlet duct 11, and its thickness is too small to accommodate the guide duct 12, while the outer shell 13 is used to form the shape of the ceiling fan, and its thickness is greater, therefore the guide duct 12 is disposed on the outer shell 13.

[0031] In one implementation, the air outlet assembly 2 forms an air supply duct 21 between itself and the outer casing 13 by descending. One end of the air supply duct 21 is connected to the air outlet duct 11, and the other end forms the first air outlet 10. The second air outlet 20 is connected to the air supply duct 21. At this time, the airflow from the second air outlet 20 flows into the air supply duct 21 and mixes with the airflow about to flow out of the first air outlet 10, thereby changing the air outlet direction of the first air outlet 10 and achieving the purpose of changing the air outlet direction of the ceiling fan.

[0032] Specifically, the outer casing 13 has a first sidewall 131 and a second sidewall 132. The first sidewall 131 forms part of the sidewall of the air outlet duct 11, and the second sidewall 132 forms part of the sidewall of the air supply duct 21. The first end of the guide duct 12 is located on the first sidewall 131, and the second end of the guide duct 12 is located on the second sidewall 132.

[0033] To enhance the guiding effect of airflow within the guide duct 12, the ceiling fan also includes a guide fan 4, which is disposed within the guide duct 12. The guide fan 4 draws a portion of the airflow from the outlet duct 11 into the guide duct 12, and after being pressurized by the guide fan 4, it is discharged through the second outlet 20. This effectively guides the airflow from the ceiling fan, thereby improving the airflow range and efficiency of the ceiling fan.

[0034] Optionally, the guide fan 4 includes a cross-flow fan blade, the rotation axis of which is parallel to the length direction of the first air outlet 10. The characteristic of the cross-flow fan blade is that when the impeller rotates, airflow enters the blade grid from the open part of the impeller, passes through the interior of the impeller, and is discharged into the volute from the other side of the blade grid, forming a working airflow. A vortex also exists inside the impeller, centered near the volute tongue. The presence of the vortex causes a circulating flow at the impeller output end; outside the vortex, the airflow streamline inside the impeller is arc-shaped. When the cross-flow fan blade rotates, air enters from and exits from part of the side, driving the gas. The airflow direction of the cross-flow fan blade is towards the second air outlet 20, thereby ensuring the airflow velocity and volume at the second air outlet 20, and thus ensuring the adjustment of the airflow direction of the ceiling fan.

[0035] The rotational speed of the cross-flow fan blades is adjustable. When the rotational speed of the cross-flow fan blades is low, the air velocity and air volume at the second air outlet 20 are low, and its guiding effect on the airflow from the ceiling fan is small. Conversely, when the rotational speed of the cross-flow fan blades is high, the air velocity and air volume at the second air outlet 20 are high, and its guiding effect on the airflow from the ceiling fan is large. Taking the first air outlet 10 as a horizontal outlet and the second air outlet 20 as a downward-sloping outlet as an example (e.g.) Figure 1 As shown, when the air velocity and air volume of the second air outlet 20 are large, the airflow of the first air outlet 10 will tilt downward at a large angle, which can quickly exchange heat to the area below the ceiling machine. When the air velocity and air volume of the second air outlet 20 are small, the airflow of the first air outlet 10 will tilt downward at a small angle, which can ensure the air delivery distance of the ceiling machine.

[0036] The air outlet assembly 2 includes an air outlet frame, which forms an air outlet between itself and the main frame 1. The air outlet frame can be raised and lowered independently. In other embodiments not shown, the air outlet assembly 2 includes an air outlet frame and a return air panel, which forms an air outlet between itself and the main frame 1. The return air panel is provided with a return air outlet, and the air outlet frame and the return air panel are connected and can be raised and lowered together.

[0037] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A ceiling winch, characterized in that: include: The main frame (1) has an air outlet duct (11) formed on it. An air outlet assembly (2) is vertically mounted on the main frame (1), and the air outlet assembly (2) forms a first air outlet (10) between itself and the main frame (1) by descending. The first air outlet (10) is connected to the air outlet duct (11). The main frame (1) is provided with a guide air duct (12), the first end of the guide air duct (12) is connected to the air outlet duct (11), and the second end of the guide air duct (12) forms a second air outlet (20). The air outlet (10) has an angle with the air outlet (20) of the second air outlet; The air outlets of the first air outlet (10) and the second air outlet (20) will influence each other and eventually form the air outlet of the ceiling machine; The air outlet duct (11) has an inlet end (111) and an outlet end (112) opposite to each other, and a flow section (113) located between the inlet end (111) and the outlet end (112). The first air outlet (10) is connected to the outlet end (112), and the first end of the guide duct (12) is connected to the flow section (113). The main frame (1) includes an outer shell (13) and an inner shell (14). The inner shell (14) is disposed inside the outer shell (13), and the air outlet duct (11) is formed between the inner shell (14) and the outer shell (13). The guide duct (12) is formed inside the outer shell (13). The air outlet assembly (2) forms an air supply duct (21) between itself and the outer shell (13) by descending. One end of the air supply duct (21) is connected to the air outlet duct (11), and the other end forms the first air outlet. (10) The second air outlet (20) is connected to the air supply duct (21); the outer shell (13) has a first side wall (131) and a second side wall (132), the first side wall (131) constitutes part of the side wall of the air outlet duct (11), the second side wall (132) constitutes part of the side wall of the air supply duct (21), and the first end of the guide duct (12) is located on the first side wall (131), and the second end of the guide duct (12) is located on the second side wall (132).

2. The well machine according to claim 1, characterized in that: The ceiling machine also includes a guide fan (4), which is installed in the guide air duct (12).

3. The well machine according to claim 2, characterized in that: The guide fan (4) includes a cross-flow fan blade, the rotation axis of which is parallel to the length direction of the first air outlet (10).

4. The well machine according to claim 3, characterized in that: The rotational speed of the cross-flow fan blades is adjustable.

5. The well machine according to claim 1, characterized in that: The air outlet assembly (2) includes an air outlet frame, which forms an air outlet between the air outlet frame and the main frame (1), and the air outlet frame can be raised and lowered independently.

6. The well machine according to claim 1, characterized in that: The air outlet assembly (2) includes an air outlet frame and a return air panel. An air outlet is formed between the air outlet frame and the main frame (1). 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.

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