Skylight machine

Abstract

The present invention provides a ceiling machine, comprising a main frame; an air outlet assembly; and an air guide structure, wherein the air guide structure is arranged on the main frame, and when the ceiling machine is in cooling mode, the air guide structure can guide the air out of the air outlet. The ceiling machine provided by the present invention guides the airflow passing through the frame by arranging an air guide structure, thereby overcoming the problem that the airflow cannot flow well along the ceiling due to the main frame protruding from the ceiling. At the same time, the first air guide plate can adjust the flow direction of the upper airflow at the air outlet, and cooperate with the second air guide plate to effectively increase the air supply distance of the air outlet. The guide channel can make the upper airflow at the air outlet flow toward the ceiling or toward the corner of the ceiling machine by changing the width or depth, thereby effectively increasing the air supply distance and air supply angle of the ceiling machine and increasing the air outlet effect of the ceiling machine.

Description

Technical Field

[0001] The present invention relates to the technical field of air treatment equipment, in particular to a skylight machine. Background Art

[0002] A ceiling unit is a type of air conditioner that is embedded in the ceiling to reduce the space it occupies, and uses air outlets on the surface of the ceiling unit for heat exchange. Due to the limitations of the position of the air outlet, it can only discharge air in the set direction and cannot blow horizontally during cooling.

[0003] In order to enable the ceiling unit to blow horizontally in cooling mode so that the airflow flows along the wall, the existing technology adopts the technical solution of setting the air outlet assembly to a liftable structure, and the main frame is fixedly set on the circumferential outer side of the air outlet assembly. When the ceiling unit is working, the air outlet assembly drops to a certain height and forms a height difference with the main frame. The air outlet assembly and the main frame set on the outside of the air outlet assembly form an air outlet. The fan blows air from the inside of the ceiling unit through the air outlet, and uses the air guide plate at the air outlet to guide the airflow. Especially when the air conditioner is in cooling mode, it is necessary to make the air outlet as parallel to the horizontal plane as possible to increase the air supply distance, thereby achieving waterfall-style cooling and improving user comfort.

[0004] However, the existing technology of the overhead crane only adjusts the air outlet direction of the overhead crane by setting an air guide plate at the air outlet, without considering the influence of the part of the overhead crane protruding from the installation plane on the airflow, which ultimately causes the problem of poor air outlet effect of the overhead crane. Summary of the Invention

[0005] In order to solve the technical problem of poor air outlet effect of the existing ceiling hood, a ceiling hood is provided which adds a guide structure to further adjust the air outlet of the air outlet to improve the air outlet effect.

[0006] A roof crane, comprising:

[0007] Main frame;

[0008] An air outlet assembly, the air outlet assembly being movably disposed within the main frame, and having a working position where the air outlet assembly is lowered to a predetermined height and forms an air outlet with the main frame;

[0009] An air guide structure is provided on the main frame, and when the ceiling machine is in cooling mode, the air guide structure can guide the air out of the air outlet.

[0010] The main frame includes a frame, and at least part of the air discharged from the air outlet passes through the frame. The air guide structure includes a first air guide plate, and the first air guide plate is swingably arranged on the frame.

[0011] The plane where the first air guide plate is located is tilted upward relative to the horizontal plane to form an inclination angle d, and the angle range of the inclination angle d is 0°<d≤10°; and / or the plane where the first air guide plate is located is parallel to the horizontal plane.

[0012] The air outlet assembly also includes a second air guide plate, which is swingably arranged at the air outlet. The angle e between the plane where the first air guide plate is located and the plane where the second air guide plate is located is in the range of -10°≤e≤10°, and when e=0°, the plane where the first air guide plate is located is parallel to the plane where the second air guide plate is located.

[0013] The main frame includes a frame, and at least part of the air discharged from the air outlet passes through the frame. A guide flow channel is formed on the frame, and the guide flow channel constitutes the air guide structure.

[0014] Along the air outlet direction of the air outlet, the width of the guide flow channel gradually increases; and / or the depth of the guide flow channel gradually increases.

[0015] The air outlet assembly includes an air outlet frame, an air outlet is formed between the air outlet frame and the main frame, and the air outlet frame is lifted and lowered independently.

[0016] The air outlet assembly includes an air outlet frame and an air return panel. An air outlet is formed between the air outlet frame and the main frame. The air return panel is provided with an air return port. The air outlet frame and the air return panel are connected and rise and fall together.

[0017] The ceiling machine provided by the present invention guides the air flow passing through the frame by setting an air guide structure, thereby overcoming the problem that the air flow cannot flow well along the ceiling due to the main frame protruding from the ceiling. At the same time, the first air guide plate can adjust the flow direction of the upper air flow at the air outlet, and cooperate with the second air guide plate to effectively increase the air supply distance of the air outlet. The guide flow channel can use the change of width or depth to make the upper air flow at the air outlet flow toward the ceiling or toward the corner of the ceiling machine, thereby effectively increasing the air supply distance and air supply angle of the ceiling machine and increasing the air outlet effect of the ceiling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A cross-sectional view of a roof hoist according to an embodiment of the present invention;

[0019] Figure 2 A bottom view of a skylight machine according to an embodiment of the present invention;

[0020] Figure 3 Another bottom view of the skylight machine according to the embodiment of the present invention;

[0021] In the picture:

[0022] 1. Main frame; 3. Air outlet assembly; 10. Air outlet; 11. Frame; 6. First air guide plate; 4. Second air guide plate; 7. Air guide channel. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The ceiling unit is an air handling device installed on the ceiling for indoor heat exchange. Due to the structure and installation requirements of the ceiling unit, part of the structure of the ceiling unit must protrude from the ceiling. When the ceiling unit is cooling, the existing technology generally adopts a horizontal air supply method to make the air flow adhere to the ceiling and flow, increasing the air supply distance, thereby achieving waterfall-style cooling. However, because the part of the ceiling unit protrudes from the ceiling, the actual air outlet of the ceiling unit cannot be attached to the ceiling, and when leaving the part of the ceiling unit protruding from the ceiling, the air outlet flow area of ​​the ceiling unit increases instantly, making the actual air outlet effect of the ceiling unit worse. After the applicant's research on the principle of air flow and analysis of simulation experimental data, it was found that designing the part of the ceiling unit protruding from the ceiling and setting a corresponding structure on it can better guide the air outlet of the ceiling unit, which is an improvement point that can effectively improve the air outlet effect of the ceiling unit.

[0025] Therefore, this application provides Figures 1 to 3 The ceiling machine shown includes: a main frame 1; an air outlet assembly 3, which is liftably arranged in the main frame 1, and the air outlet assembly 3 has a working position of being lowered to a predetermined height and forming an air outlet 10 with the main frame 1; an air guide structure, which is arranged on the main frame 1, and when the ceiling machine is in cooling mode, the air guide structure can guide the air out of the air outlet.

[0026] The present application guides the airflow passing through the frame by setting an air guide structure. The air guide structure can change the direction of the upper part of the airflow at the air outlet, thereby overcoming the problem that the airflow cannot flow well along the ceiling due to the main frame protruding from the ceiling, ensuring the air outlet effect of the ceiling machine and realizing waterfall-style cooling.

[0027] It should be noted that the main frame 1 is the primary load-bearing structure of the ceiling unit. When the ceiling unit is installed, the main frame 1 is used to be mounted on the ceiling. Other structures can be directly or indirectly mounted on the main frame 1 and fixed to the ceiling through the main frame 1. The ceiling unit has an internal unit portion installed in the ceiling. The main frame 1 is connected to the internal unit. The air outlet assembly 3 is connected to the main frame 1. The internal unit has an internal unit exhaust port. The first end of the air outlet duct of the main frame 1 is connected to the internal unit exhaust port. The air flow path is: return air port - evaporator - internal unit exhaust port - first end of the air outlet duct - second end of the air outlet duct - outlet 10.

[0028] As an embodiment, the main frame 1 includes a frame 11, and at least part of the air from the air outlet passes through the frame 11. The air guide structure includes a first air guide plate 6, which is swingably arranged on the frame 11. The first air guide plate 6 is used to guide part of the air outlet (especially the upper airflow at the air outlet). Under the guidance of the wall effect, this part of the air can flow further toward the installation plane of the main frame 1 along with the first air guide plate 6, ultimately increasing the air supply distance and air outlet effect of the ceiling machine. The width of the first air guide plate 6 is less than or equal to the width of the frame 11, and is selected and set according to actual needs.

[0029] The plane where the first air guide plate 6 is located is tilted upward relative to the horizontal plane to form an inclination angle d, and the angle range of the inclination angle d is 0°<d≤10°; and / or, the plane where the first air guide plate (6) is located is parallel to the horizontal plane, that is, the angle of the inclination angle d is 0° at this time.

[0030] Taking the experimental data of a 3-HP engine as an example, the angle of the tilt angle d is adjusted in this solution. The upward tilt of the plane where the first air guide plate 6 is located relative to the horizontal plane is a positive angle, and the downward tilt relative to the horizontal plane is a negative angle. The simulation structure is as follows:

[0031] Angle d <![CDATA[Air volume (m 3 / h)]]> Air supply distance 15° 1112 3.3m 10° 1112 3.4m 5° 1112 3.5m 0° 1100 3m -5° 1052 2.6m

[0032] From the experimental results, when the angle d is 5° (that is, the plane where the first air guide plate is located is tilted 5° upward relative to the horizontal plane), the wind volume reaches the maximum value, and the air supply distance also reaches the maximum value; when the angle d is 0° (the plane where the first air guide plate is located is parallel to the horizontal plane), the wind volume begins to decrease, and the air supply distance also begins to decrease; when the angle d is -5° (the plane where the first air guide plate is located is tilted 5° downward relative to the horizontal plane), the wind volume is severely attenuated, and the air supply distance is also severely reduced; when the angle d is 10° (the plane where the first air guide plate is located is tilted 10° upward relative to the horizontal plane), the wind volume does not change significantly, but The air supply distance begins to decrease; when the angle d is 15° (at this time, the plane where the first air guide plate is located is tilted upward by 15° relative to the horizontal plane), the air volume does not change significantly, the air supply distance attenuates greatly, and at this time, the size of the ceiling evacuator protruding from the ceiling is required to be larger, which will affect the appearance and reliability of the ceiling evacuator. Taking the width of the first air guide plate as 3cm as an example, when the plane where the first air guide plate is located is tilted upward by 15° relative to the horizontal plane, the size of the ceiling evacuator protruding from the ceiling is required to be 3*sin15°=1.95cm. At this time, the size of the traditional ceiling evacuator protruding from the ceiling can no longer meet this size requirement, so it cannot be used when the angle d is 15°.

[0033] The air outlet assembly also includes a second air deflector 4, which is swingably disposed at the air outlet 10. The angle e between the plane of the first air deflector 6 and the plane of the second air deflector 4 is in the range of -10°≤e≤10°. When e=0°, the plane of the first air deflector 6 is parallel to the plane of the second air deflector 4. The cooperation between the first air deflector 6 and the second air deflector 4 further increases the air supply distance of the overhead crane, thereby ensuring the air outlet effect of the overhead crane.

[0034] Taking the experimental data of a 3-HP engine as an example, in this solution, the plane where the second air guide plate 4 is located is parallel to the horizontal plane. The angle of the first air guide plate is adjusted for simulation. Among them, the plane where the first air guide plate 6 is located is tilted upward relative to the horizontal plane as a positive angle, and tilted downward relative to the horizontal plane as a negative angle. The simulation results are as follows:

[0035] Angle e <![CDATA[Air volume (m 3 / h)]]> Air supply distance 15° 748 3.2 10° 830 3.3 0° 995 3.5m -10° 1005 3.5 -15° 1112 2.5

[0036] From the simulation results, when the angle e is 0° (at this time, the plane where the first air guide plate is located is parallel to the plane where the second air guide plate is located), the air volume basically reaches the maximum value, and the air supply distance also reaches the maximum value. When the angle e is -10°, the air volume can reach the maximum value, but the air supply distance begins to decay; when the angle e is -15°, the air volume is still at the maximum value, but the air supply distance decays severely, and the purpose of horizontal air discharge along the wall during cooling cannot be achieved; when the angle e is 10°, both the air volume and the air supply distance begin to decay; when the angle e is 15°, the air volume and the air supply distance decay severely, and the normal cooling efficiency of the ceiling unit cannot be guaranteed.

[0037] In another embodiment, the main frame 1 includes a frame 11. At least a portion of the air from the air outlet 10 passes through the frame 11. The frame 11 is formed with a guide channel 7, which constitutes an air guide structure. The guide channel is used to reduce the impact of the frame 11 on the airflow at the air outlet, and to guide the airflow passing through the frame 11 (the upper airflow at the air outlet), thereby changing the airflow structure at the air outlet and ensuring the air outlet effect of the ceiling fan.

[0038] Along the air outlet direction of the air outlet, the width of the guide channel 7 gradually increases. The width of the guide channel 7 refers to the dimension in the direction of the line connecting the two adjacent corners of the ceiling machine. The horizontal cross-section of the guide channel can be in the shape of an "eight", wherein the narrow opening of the "eight" shape faces the interior of the ceiling machine. On the premise of keeping the overall thickness of the frame 11 unchanged, an "eight"-shaped guide channel 7 is opened on the frame 11. At this time, when part of the air outlet 10 passes through the guide channel 7, it can gradually flow to the corner of the ceiling machine under the guidance of the guide channel 7, thereby increasing the air outlet range of the ceiling machine.

[0039] As another embodiment, the depth of the guide channel 7 gradually increases. The depth of the guide channel 7 refers to the dimension in the thickness direction of the ceiling machine. It can also be said that along the air outlet direction of the air outlet, the distance from the bottom surface of the guide channel 7 to the same horizontal plane gradually increases. For example, the cross-section of the guide channel 7 is a right-angled trapezoid, the hypotenuse of the right-angled trapezoid constitutes the bottom surface of the guide channel 7, and the air outlet of the air outlet 10 passes through the bottom of the right-angled trapezoid with a smaller size and the bottom of the right-angled trapezoid with a larger size in sequence. The overall size of the frame 11 does not change, and part of the air outlet 10 can flow along the bottom surface of the guide channel 7 gradually toward the installation plane (such as the ceiling) of the main frame 1 when passing through the guide channel 7, so that the airflow flowing out of the guide channel 7 is as parallel to the installation plane as possible, thereby increasing the flow distance of the airflow on the installation plane, thereby increasing the air supply distance.

[0040] The air outlet assembly 3 includes an air outlet frame, an air outlet is formed between the air outlet frame and the main frame, and the air outlet frame is raised and lowered independently. In other embodiments not shown, the air outlet assembly 3 includes an air outlet frame and a return air panel, an air outlet is formed between the air outlet frame and the main frame, and the return air panel is provided with a return air outlet. The air outlet frame and the return air panel are connected and raised and lowered together.

[0041] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A roof crane, characterized in that: include: Main frame (1); An air outlet assembly (3), the air outlet assembly (3) being movably mounted on the main frame (1), and the air outlet assembly (3) having a working position where it is lowered to a predetermined height and forms an air outlet (10) with the main frame (1); An air guide structure, the air guide structure being arranged on the main frame (1), and being capable of guiding the air out of the air outlet when the ceiling unit is in a cooling mode; The main frame (1) includes a frame (11), at least part of the air discharged from the air outlet passes through the frame (11), and the air guide structure includes a first air guide plate (6), and the first air guide plate (6) is swingably arranged on the frame (11); The air outlet assembly (3) further comprises a second air guide plate (4), the second air guide plate (4) being swingably arranged at the air outlet (10), the angle e between the plane where the first air guide plate (6) is located and the plane where the second air guide plate (4) is located being in the range of -10°≤e≤10°, and when e=0°, the plane where the first air guide plate (6) is located is parallel to the plane where the second air guide plate (4) is located.

2. The roof crane according to claim 1, characterized in that: The plane where the first air guide plate (6) is located is tilted upward relative to the horizontal plane to form an inclination angle d, and the angle range of the inclination angle d is 0°<d≤10°; and / or the plane where the first air guide plate (6) is located is parallel to the horizontal plane.

3. The roof crane according to claim 1, characterized in that: The main frame (1) comprises a frame (11), at least part of the air discharged from the air outlet passes through the frame (11), a guide channel (7) is formed on the frame (11), and the guide channel (7) constitutes the air guide structure.

4. The overhead crane according to claim 3, characterized in that: Along the air outlet direction of the air outlet, the width of the guide channel (7) gradually increases.

5. The roof crane according to claim 3, characterized in that: Along the air outlet direction of the air outlet, the depth of the guide channel (7) gradually increases.

6. The overhead crane according to claim 1, characterized in that: The air outlet assembly (3) comprises an air outlet frame, an air outlet is formed between the air outlet frame and the main frame, and the air outlet frame is independently raised and lowered.

7. The overhead crane according to claim 1, characterized in that: The air outlet assembly (3) comprises an air outlet frame and an air return panel, an air outlet is formed between the air outlet frame and the main frame, the air return panel is provided with an air return port, and the air outlet frame and the air return panel are connected and rise and fall together.

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