Ceiling-mounted unit

Abstract

The present invention provides a ceiling air conditioner, which includes a main body frame. The main body frame includes a frame; an air outlet assembly, which is disposed on the main body frame in a liftable manner, and a first air outlet is formed between the air outlet assembly and the main body frame when the air outlet assembly descends. The relationship between the width D by which the outer edge of the air outlet assembly exceeds the first edge and the height h1 of the air outlet is 2 / 5 ≤ D / h1 ≤ 9 / 5. The ceiling air conditioner provided by the present invention enables a part of the projection of the air outlet assembly on the main body frame to be located on the frame, that is, the size of the air outlet assembly is increased to deflect the obliquely downward air outlet of the ceiling air conditioner to horizontal flow as much as possible, so that the air outlet of the ceiling air conditioner flows along the horizontal direction to the greatest extent, effectively increasing the air guiding effect of the air guiding plate on the air outlet of the ceiling air conditioner. According to the ratio relationship between the size of the air guiding part and the height of the air outlet, the size of the air guiding part can be directly determined, ensuring the air guiding effect of the air guiding plate on the air outlet of the ceiling air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of air handling equipment, and particularly to a ceiling unit. Background Art

[0002] A ceiling unit is a type of air conditioner. It is installed embedded in the ceiling to reduce the occupied space and exchanges heat through the air outlet formed on the surface of the ceiling unit. Due to the limitation of the position of its air outlet, it can only blow air in a set direction and cannot blow horizontally during refrigeration.

[0003] In the prior art, in order to enable the ceiling unit to blow horizontally in the refrigeration mode so that the air flow adheres to the wall, the technical solution adopted is to set the air outlet assembly as a liftable structure, and the main frame is fixedly arranged on the circumferential outer side of the air outlet assembly. When the ceiling unit is working, the air outlet assembly descends a certain height and forms a height difference with the main frame. The air outlet assembly and the main frame arranged outside 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 deflector at the air outlet to guide the air flow. Especially when the air conditioner is in the refrigeration mode, it is necessary to make the blown air as parallel to the horizontal plane as possible to increase the air supply distance, so as to achieve waterfall refrigeration and improve the comfort of users.

[0004] However, in the prior art, the size of the air deflector is generally determined according to the design experience of the designer, and its purpose is only to ensure the aesthetic appearance of the ceiling unit. That is to say, the air deflector in the existing ceiling unit has a very poor guiding effect on the air outlet of the ceiling unit, and finally causes the problem of poor air outlet effect of the ceiling unit. Summary of the Invention

[0005] In order to solve the technical problem of poor air outlet effect of the ceiling unit in the prior art, a ceiling unit is provided, which increases the size of the air deflector to improve the guiding effect on the air outlet of the ceiling unit so as to improve the air outlet effect.

[0006] A ceiling unit includes:

[0007] A main frame, on which an air outlet duct is formed. The main frame includes a frame, and the frame has a first edge forming the lowest point of the air outlet duct;

[0008] An air outlet assembly, which is liftably arranged on the main frame, and a first air outlet is formed between the air outlet assembly and the main frame by the descent of the air outlet assembly;

[0009] The relationship between the width D by which the outer edge of the air outlet assembly exceeds the first edge and the height h1 of the air outlet is 2 / 5 ≤ D / h1 ≤ 9 / 5.

[0010] When the first air outlet is formed between the air outlet assembly and the main body frame by the descent of the air outlet assembly, a spacing is formed between the air outlet assembly and the main body frame, and the spacing forms a air supply duct. One end of the air supply duct is communicated with the air outlet duct, and the other end of the air supply duct forms the first air outlet.

[0011] When the first air outlet is formed between the air outlet assembly and the main body frame by the descent of the air outlet assembly, the air supply duct is formed between the air outlet assembly and the frame. On the installation plane of the main body frame, at least part of the projection of the air outlet assembly coincides with the projection of the frame.

[0012] A second air outlet is provided on the air outlet assembly, and a wind deflector is provided at the second air outlet. The wind deflector is rotatably provided at the second air outlet, and the wind deflector can close or open the second air outlet.

[0013] A step sealing structure is provided between the edge of the wind deflector and the edge of the second air outlet.

[0014] A first step structure is provided on the edge of the wind deflector, and a second step structure is provided on the edge of the second air outlet. The first step structure and the second step structure cooperate to form the step sealing structure.

[0015] The ceiling unit further includes a lifting mechanism. The lifting mechanism is provided on the main body frame, and the air outlet assembly is provided on the lifting mechanism.

[0016] The air outlet assembly includes an air outlet frame. A first air outlet is formed between the air outlet frame and the main body frame, and the air outlet frame is lifted and lowered independently.

[0017] 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 body frame. The return air panel is provided with a return air opening. The air outlet frame is connected to the return air panel and they are lifted and lowered together.

[0018] In the ceiling unit provided by the present invention, part of the projection of the wind deflector on the main body frame is located on the frame, that is, the size of the wind deflector is increased to deflect the obliquely downward air outlet of the ceiling unit to horizontal flow as much as possible, so that the air outlet of the ceiling unit flows along the horizontal direction to the greatest extent, effectively increasing the air guiding effect of the wind deflector on the air outlet of the ceiling unit. According to the ratio relationship between the size of the air guiding part and the height of the air outlet, the size of the air guiding part can be directly determined to ensure the air guiding effect of the wind deflector on the air outlet of the ceiling unit. Description of the Drawings

[0019] Figure 1 It is a cross-sectional view of the ceiling unit according to the embodiment provided by the present invention;

[0020] Figure 2 The bottom view of the ceiling unit according to the embodiment provided by the present invention;

[0021] Figure 3 The simulation diagram of the ceiling unit according to the embodiment provided by the present invention with the ratio of D / h1 being 0.33;

[0022] Figure 4 The simulation diagram of the ceiling unit according to the embodiment provided by the present invention with the ratio of D / h1 being 0.4;

[0023] In the figure:

[0024] 1. Main body frame; 11. Frame; 111. First edge; 3. Air outlet assembly; 10. First air outlet; 14. Air supply duct; 20. Second air outlet; 4. Air deflector. Specific embodiments

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present 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 only used to explain the present invention and are not used to limit the present invention.

[0026] For the ceiling unit in the prior art, there is the following relationship between the air supply distance and the air outlet air volume: when the air supply distance is far, the attenuation of the air outlet air volume is large, and when the air supply distance is near, the attenuation of the air outlet air volume is small. In view of the problem that the attenuation of the air outlet air volume is large when the ceiling unit requires a long air supply distance, in the prior art, generally, the relevant parameters of the fan (the diameter and speed of the fan) are simply increased to ensure the air outlet air volume, resulting in an increase in the overall size or cost of the ceiling unit. However, after the applicant's research on the air outlet airflow of the ceiling unit and analysis of the simulation experiment data, it is found that the technical solution of increasing the relevant parameters of the fan actually has more disadvantages than advantages and is not conducive to the further development of the industry. Instead, the size parameters of the air deflector, which have been ignored and overlooked in the art, are the improvement points that can effectively improve the matching degree between the air supply distance and the air outlet air volume of the ceiling unit.

[0027] Therefore, the present application provides as Figures 1 to 4The ceiling unit shown includes: a main body frame 1, on which an air outlet duct is formed. The main body frame 1 includes a frame 11, and the frame 11 has a first edge 111 that forms the lowest point of the air outlet duct; an air outlet assembly 3, which is liftably arranged on the main body frame 1, and a first air outlet 10 is formed between the air outlet assembly 3 and the main body frame 1 when the air outlet assembly 3 descends. The relationship between the width D by which the outer edge of the air outlet assembly 3 exceeds the first edge 111 and the height h1 of the air outlet is 2 / 5 ≤ D / h1 ≤ 9 / 5. If the value of D is too small, it cannot guide the airflow that needs to be discharged from the first air outlet 10. When the value of D is too large, it will affect the appearance of the ceiling unit, and since the size of the air outlet assembly 3 is too large, it is prone to deformation, causing damage to the ceiling unit.

[0028] Taking the experimental data of a 3 - horsepower unit as an example, in this scheme, h1 is 30 mm, and the value of D is adjusted for simulation. The simulation results are as follows:

[0029] D D / h1 <![CDATA[Air volume (m 3 / h)]]> Air supply distance 10 0.33 1110 2.1m 12 0.4 1109 2.8m 15 0.5 1109 2.8m 20 0.67 1109 2.9m 25 0.83 1108 2.9m 30 1 1108 3.1m 35 1.17 1107 3.1m 40 1.33 1107 3.2m 45 1.5 1107 3.2m 50 1.67 1106 3.3m 55 1.83 1100 3.3m 60 2 1074 3.3m

[0030] Judging from the data, when the ratio of D / h1 is 0.33, the air supply distance is short, and it does not play a role in guiding the flow, and the comfort during refrigeration cannot be achieved (such as Figure 3 ); when D / h1 is in the range of 0.4 to 1.8, the air supply distance increases significantly, the effect is obvious, and the air volume is basically not attenuated (such as Figure 4 , at this time D / h1 is 0.4); during the process of the ratio gradually increasing, it can be seen that the air supply distance continues to increase slowly; however, when D / h1 exceeds 1.8, due to the lengthening of the air duct, the air volume attenuates, and at this time, the refrigeration effect will also be affected.

[0031] The air outlet of the existing ceiling unit can include a horizontally flowing part and an obliquely downward flowing part. The horizontally flowing part can determine the air supply distance of the ceiling unit, and the obliquely downward flowing part can quickly make the airflow flow into the room. When it is necessary to increase the air supply distance of the ceiling unit, it is necessary to reduce the air volume of the obliquely downward flowing part to increase the air volume of the horizontally flowing part. When the air volume of the horizontally flowing part increases, the farther the air supply distance can reach during air outlet. Therefore, in order to increase the air volume of the horizontally flowing part, by increasing the size of the air outlet assembly 3, the obliquely downward component in the air outlet is adjusted to the horizontal direction, thereby increasing the air volume flowing in the horizontal direction and finally increasing the air supply distance.

[0032] It should be noted that the main frame 1 is the main load-bearing structure of the ceiling-mounted air conditioner. When installing the ceiling-mounted air conditioner, the main frame 1 is used to be installed on the ceiling, and 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 part installed inside the ceiling. The main frame 1 is connected to the indoor unit, and the air outlet assembly 3 is connected to the main frame 1. The indoor unit has an indoor unit air outlet. The first end of the air outlet duct of the main frame 1 is communicated with the indoor unit air outlet. The air flow path is: return air inlet - evaporator - indoor unit air outlet - the first end of the air outlet duct - the second end of the air outlet duct - blown out from the first air outlet 10. The frame 11 refers to the overlapping part between the main frame 1 and the ceiling when the ceiling-mounted air conditioner is installed on structures such as the ceiling. The height h1 of the first air outlet 10 refers to the height between the horizontal plane where the edge of the lowest point of the air outlet duct formed by the main frame 1 is located and the horizontal plane where the outermost edge of the air outlet assembly 3 is located in the direction where there is a height difference between the air outlet assembly 3 and the main frame 1. When the air deflector 4 forms a projection on the main frame 1, the angle range of the angle between the air deflector 4 and the horizontal plane is -10° to 10°.

[0033] When the first air outlet 10 is formed between the air outlet assembly 3 and the main frame 1 by the air outlet assembly 3 descending, a spacing is formed between the air outlet assembly 3 and the main frame 1, and the spacing forms a air supply duct 14. One end of the air supply duct 14 is communicated with the air outlet duct, and the other end of the air supply duct 14 forms the first air outlet 10. The air flow in the air outlet duct is blown out from the first air outlet 10 after being deflected by the air supply duct 14. The air supply duct 14 is used to deflect the vertically downward air flow in the air outlet duct into a direction that is roughly horizontal away from the ceiling-mounted air conditioner or even upwardly inclined relative to the horizontal plane, so as to achieve horizontal air outlet of the ceiling-mounted air conditioner.

[0034] When the first air outlet 10 is formed between the air outlet assembly 3 and the main frame 1 by the air outlet assembly 3 descending, the air supply duct 14 is formed between the air outlet assembly 3 and the frame 11. On the installation plane of the main frame 1, at least part of the projection of the air outlet assembly 3 coincides with the projection of the frame 11. When part of the projection of the air outlet assembly 3 coincides with the projection of the frame 11, compared with the prior art, the air outlet assembly is substantially extended, so that the flat blowing effect of the ceiling-mounted air conditioner is good and the air supply distance is increased. When the first air outlet 12 of the ceiling-mounted air conditioner is opened, the air outlet assembly 3 gradually moves away from the main frame 1 to form the air supply duct 14. At this time, the corresponding part of the air outlet assembly 3 forms the lower side surface of the air supply duct 14. When the air flow passes through the air supply duct 14, under the guiding action of the lower side surface of the air supply duct, the air flow flows horizontally or even blows out in an upwardly inclined direction, increasing the air supply distance of the ceiling-mounted air conditioner, so as to achieve the effect of horizontal air outlet. At this time, D refers to the distance between the edge of the projection of the air outlet assembly 3 and the lowest point of the air outlet duct (as Figure 1 shown).

[0035] As another implementation, the projection of the air outlet component 3 completely coincides with the projection of the frame 11. In this case, compared with the case where the projection of the air outlet component 3 partially coincides with the projection of the frame 11, the air outlet component can be further extended, so that the flat blowing effect of the ceiling unit is better and the air supply distance is further increased. At the same time, when the ceiling unit is in the shutdown state, the air outlet component 3 is attached to the main body frame 1, and the corresponding part of the air outlet component 3 is attached to the frame 11. When people observe the ceiling unit from the ground, they can only see the air outlet component 3 and cannot see the main body frame 1, effectively increasing the aesthetics of the ceiling unit. At this time, D is the distance between the lowest point of the air outlet duct as the starting point and the edge position of the frame 11 as the ending point.

[0036] As another implementation, the projection of the air outlet component 3 extends beyond the projection of the frame 11. In this case, compared with the case where the projection of the air outlet component 3 completely coincides with the projection of the frame 11, the air outlet component can be further extended, thereby further increasing the flat blowing effect and the air supply distance of the ceiling unit.

[0037] Preferably, the projection of the air outlet component 3 exceeds the projection of the main body frame 1, so that the air outlet component 3 effectively increases the air guiding size compared with the prior art, achieving the purpose of increasing the air supply distance of the ceiling unit.

[0038] A second air outlet 20 is provided on the air outlet component 3, and a wind deflector 4 is provided at the second air outlet 20. The wind deflector 4 is rotatably provided at the second air outlet 20, and the wind deflector 4 can close or open the second air outlet 20. When it is necessary to open the second air outlet 20, the wind deflector 4 gradually rotates to communicate the second air outlet 20 with the air outlet duct, so that the air flow in the air outlet duct can be blown out from the second air outlet 20, and the wind deflector 4 can adjust its tilt angle according to actual needs to adjust the air outlet direction and / or the air outlet volume of the second air outlet 20; when it is necessary to close the second air outlet 20, the wind deflector 4 is reset to a state of being hermetically fitted with the air outlet component 3, thereby closing the second air outlet 20. At this time, the air flow in the air outlet duct can only be blown out from the first air outlet 10 under the combined guiding action of the air outlet component 3 and the wind deflector 4.

[0039] A first step structure is provided at the edge of the air deflector 4, and a second step structure is provided at the edge of the second air outlet 20. The first step structure and the second step structure cooperate to form the step seal structure. The seal structure is used to ensure that when the second air outlet 20 is closed, air flow will not flow out through the gap between the air deflector 4 and the second air outlet 20 (in order to prevent jamming problems caused by manufacturing tolerances, an avoidance gap needs to be designed between the air deflector 4 and the second air outlet 20), thereby reducing the air outlet effect. Among them, the air deflector 4 has a plurality of sequentially connected edges, and the edge of the second air outlet 20 is an annular edge matching the air deflector 4. A step seal structure is provided between each edge of the air deflector 4 and a corresponding part of the annular edge to ensure the sealing effect of the air deflector 4 on the second air outlet 20.

[0040] The ceiling machine further includes a lifting mechanism. The lifting mechanism is provided on the main body frame 1, and the air outlet assembly 3 is provided on the lifting mechanism. The air outlet assembly 3 can be extended or retracted into the main body frame 1 through the lifting mechanism, so that the air outlet assembly 3 can move freely between the working position and the closed position.

[0041] The air outlet assembly 3 includes an air outlet frame. A first air outlet 10 is formed between the air outlet frame and the main body frame 1, and the air outlet frame is lifted and lowered independently. In other embodiments not shown, the air outlet assembly 3 includes an air outlet frame and a return air panel. A first air outlet 10 is formed between the air outlet frame and the main body frame 1. The return air panel is provided with a return air port. The air outlet frame is connected to the return air panel and they are lifted and lowered together.

[0042] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A ceiling unit, characterized in that: it includes: a main body frame (1), an air outlet duct is formed on the main body frame (1), the main body frame (1) includes a frame (11), and the frame (11) has a first edge (111) that forms the lowest point of the air outlet duct; an air outlet assembly (3), the air outlet assembly (3) is disposed on the main body frame (1) in a liftable manner, and a first air outlet (10) is formed between the air outlet assembly (3) and the main body frame (1) when the air outlet assembly (3) descends; The relationship between the width D by which the outer edge of the air outlet assembly (3) exceeds the first edge (111) and the height h1 of the air outlet is 2 / 5 ≤ D / h1 ≤ 9 / 5.

2. The ceiling unit according to claim 1, characterized in that: When the first air outlet (10) is formed between the air outlet assembly (3) and the main body frame (1) by the descent of the air outlet assembly (3), a spacing is formed between the air outlet assembly (3) and the main body frame (1), and the spacing forms an air supply duct (14). One end of the air supply duct (14) is communicated with the air outlet duct, and the other end of the air supply duct (14) forms the first air outlet (10).

3. The ceiling unit according to claim 2, characterized in that: When the first air outlet (10) is formed between the air outlet assembly (3) and the main body frame (1) by the descent of the air outlet assembly (3), the air supply duct (14) is formed between the air outlet assembly (3) and the frame (11). On the installation plane of the main body frame (1), the projection of the air outlet assembly (3) and the projection of the frame (11) at least partially overlap.

4. The ceiling unit according to claim 1, characterized in that: A second air outlet (20) is provided on the air outlet assembly (3), and a wind deflector (4) is provided at the second air outlet (20). The wind deflector (4) is rotatably provided at the second air outlet (20), and the wind deflector (4) can close or open the second air outlet (20).

5. The ceiling unit according to claim 4, characterized in that: A stepped sealing structure is provided between the edge of the wind deflector (4) and the edge of the second air outlet (20).

6. The ceiling unit according to claim 5, characterized in that: The edge of the wind deflector (4) is provided with a first stepped structure, and the edge of the second air outlet (20) is provided with a second stepped structure. The first stepped structure and the second stepped structure cooperate to form the stepped sealing structure.

7. The ceiling unit according to claim 1, characterized in that: The ceiling unit further includes a lifting mechanism, the lifting mechanism is provided on the main body frame (1), and the air outlet assembly (3) is provided on the lifting mechanism.

8. The ceiling unit according to claim 1, characterized in that: The air outlet assembly (3) includes an air outlet frame, a first air outlet (10) is formed between the air outlet frame and the main body frame (1), and the air outlet frame is lifted and lowered independently.

9. The ceiling unit according to claim 1, characterized in that: The air outlet assembly (3) includes an air outlet frame and a return air panel. A first air outlet (10) is formed between the air outlet frame and the main body frame (1). The return air panel is provided with a return air opening. The air outlet frame is connected to the return air panel and they are lifted and lowered together.

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