Fan components, ceiling fan

Abstract

This invention provides a fan assembly and a ceiling fan. The fan assembly includes a centrifugal fan blade and a guide ring. The guide ring is disposed at the air inlet of the centrifugal fan blade, and the minimum diameter of the guide ring is larger than the diameter of the air inlet of the centrifugal fan blade. A portion of the guide ring surrounds the periphery of the centrifugal fan blade. The fan assembly and ceiling fan provided by this invention ensure that the diameter of the portion of the guide ring that mates with the air inlet of the centrifugal fan blade is larger than the diameter of the air inlet of the centrifugal fan. This eliminates the influence of the guide ring's diameter on the air intake of the centrifugal fan blade, increasing the air intake volume and thus improving the performance of the fan assembly. Simultaneously, the turbulence-causing portion of the guide ring, when mated with the external side plate of the air inlet of the centrifugal fan blade, alters the air intake flow and changes the gas direction in the vortex zone around the air inlet side plate, resulting in increased return air pressure loss, improved air intake volume and sealing effect, and effectively reduced noise.

Description

Technical Field

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

[0002] The joist is equipped with centrifugal fan blades and uses a guide ring to guide the airflow of the centrifugal fan. In the existing technology, in order to ensure the air volume of the joist, the diameter of the centrifugal fan blades or the thickness of the centrifugal fan blades and the overall thickness of the joist are generally increased. However, this will cause the internal structure of the joist to become more complex and the space occupied by the joist to increase. Summary of the Invention

[0003] Through research, the inventors discovered that when the guide ring extends into the interior of the centrifugal fan blade, the actual size of the air inlet of the centrifugal fan blade becomes the diameter of the guide ring rather than the diameter of its air inlet structure. At the same time, because the guide ring extends into the interior of the centrifugal fan blade, the height of the fan blade inside the centrifugal fan blade also needs to be reduced. Both of these factors affect the air volume of the centrifugal fan blade.

[0004] Therefore, this application provides a fan assembly and a ceiling fan in which the diameter of a portion of the guide ring that matches the air inlet of the centrifugal fan blade is larger than the air inlet diameter of the centrifugal fan, thereby overcoming the influence of the guide ring on the centrifugal fan blade.

[0005] A fan assembly includes a centrifugal fan blade and a guide ring, the guide ring being disposed at the air inlet of the centrifugal fan blade, a portion of the guide ring surrounding the periphery of the centrifugal fan blade, and the diameter of the portion of the guide ring surrounding the periphery of the centrifugal fan blade being larger than the diameter of the air inlet of the centrifugal fan blade.

[0006] The guide ring includes a turbulence-inducing part, the centrifugal fan includes an air inlet side plate, the turbulence-inducing part surrounds the periphery of the air inlet side plate, and there is a gap between the turbulence-inducing part and the air inlet side plate.

[0007] The guide ring includes a fixing part for fixing, a guide part for guiding airflow, and a turbulence part. Along the axial direction of the centrifugal fan blade, the fixing part, the guide part, and the turbulence part are connected in sequence, and the turbulence part surrounds the periphery of the centrifugal fan blade.

[0008] The shape of the turbulence section is the same as the shape of the air inlet side plate.

[0009] Along the air inlet direction of the fan assembly, the diameter of the fixed part gradually decreases, the diameter of the turbulence-inducing part gradually increases, and the minimum diameter of the fixed part, the minimum diameter of the turbulence-inducing part, and the diameter of the guide part are equal. The diameter of the guide part is larger than the diameter of the air inlet of the centrifugal fan blade.

[0010] The relationship between the diameter D2 of the guide section and the diameter D1 of the air inlet of the centrifugal fan is: 0 mm <D2-D1<8mm。

[0011] The diameter of the guide portion is the same in the direction from the fixing part to the turbulence part.

[0012] The guide portion extends away from the fixed portion to form an extended portion, the turbulence portion is disposed on the extended portion, and the extended portion surrounds the periphery of the centrifugal fan blade.

[0013] The length of the guide section ranges from 15mm to 30mm.

[0014] A ceiling fan includes the aforementioned fan assembly.

[0015] The fan assembly and ceiling fan provided by this invention have a guide ring with a diameter larger than the inlet diameter of the centrifugal fan, which is matched with the inlet of the centrifugal fan blade. This eliminates the influence of the guide ring on the airflow of the centrifugal fan blade, thereby increasing the airflow of the centrifugal fan blade and improving the performance of the fan assembly. At the same time, the turbulence part of the guide ring, after being matched with the outside of the inlet side plate of the centrifugal fan blade, changes the airflow. The airflow of the inlet and the vortex zone are in a relative state, changing the gas direction of the vortex zone around the inlet side plate. This results in increased return air pressure loss, improving the airflow and sealing effect. In addition, the length of the guide part is increased by using an extended part, thereby extending the airflow distance and effectively improving noise. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of centrifugal fan blades and guide rings in the prior art;

[0017] Figure 2 This is a schematic diagram of the air inlet and vortex zone of centrifugal fan blades and guide rings in the prior art;

[0018] Figure 3 A schematic diagram of the structure of the fan assembly, which is an embodiment of the fan assembly and ceiling fan provided by the present invention;

[0019] Figure 4 A schematic diagram of the flow guide ring in an embodiment of the fan assembly and ceiling fan provided by the present invention;

[0020] Figure 5 A schematic diagram of the air inlet and vortex zone of the centrifugal fan blades and guide rings in an embodiment of the fan assembly and ceiling fan provided by the present invention;

[0021] In the picture:

[0022] 1. Centrifugal fan blade; 2. Guide ring; 11. Air inlet; 21. Fixing part; 22. Guide part; 23. Turbulence part; 12. Air inlet side plate; 101. Vortex zone. Detailed Implementation

[0023] 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.

[0024] In existing technology, the end of the guide ring needs to extend into the air inlet of the centrifugal fan blade to form an internal fit between the guide ring and the centrifugal fan blade. However, because the guide ring needs to extend into the interior of the centrifugal fan blade, the actual size of the air inlet of the centrifugal fan blade is the diameter of the guide ring, not the diameter of its air inlet structure. Furthermore, because the guide ring extends into the interior of the centrifugal fan blade, the height of the fan blade inside the centrifugal fan blade also needs to be reduced. Both of these factors affect the airflow rate of the centrifugal fan blade. Therefore, this application provides a method... Figures 3 to 5 The fan assembly shown includes a centrifugal fan blade 1 and a guide ring 2. The guide ring 2 is disposed at the air inlet 11 of the centrifugal fan blade 1. A portion of the guide ring 2 surrounds the periphery of the centrifugal fan blade 1, and the diameter of the guide ring 2 surrounding the periphery of the centrifugal fan blade 1 is larger than the diameter of the air inlet 11 of the centrifugal fan blade 1. This ensures that the air intake of the centrifugal fan blade 1 is no longer affected by the diameter of the guide ring 2, thus forming an external mating structure between the guide ring 2 and the centrifugal fan blade 1. The guide ring 2 does not need to extend into the interior of the centrifugal fan blade, making the actual diameter of the air inlet of the centrifugal fan blade smaller than the diameter of the centrifugal fan blade 1. The size of the air inlet structure of the centrifugal fan blade is no longer limited by the guide ring 2, thus ensuring the air volume of the centrifugal fan blade. At the same time, since the guide ring 2 no longer extends into the centrifugal fan blade, the height of the centrifugal fan blade does not need to be reduced, further increasing the air volume of the centrifugal fan blade. In other words, the cooperation between the guide ring 2 and the centrifugal fan blade 1 no longer affects the centrifugal fan blade 1, thereby maximizing the air volume of the centrifugal fan blade compared to existing technologies. At the same time, during maintenance, it is convenient to check whether there is friction caused by deformation of the guide ring 2 or the centrifugal fan blade 1, reducing the difficulty of maintenance and inspection.

[0025] The guide ring 2 includes a turbulence-inducing part 23, and the centrifugal fan blade 1 includes an air inlet side plate 12. The turbulence-inducing part 23 surrounds the periphery of the air inlet side plate 12, and there is a gap between the turbulence-inducing part 23 and the air inlet side plate 12 to avoid direct structural interference between the guide ring 2 and the centrifugal fan blade 1, which would affect the normal operation of the centrifugal fan blade 1. At the same time, part of the air intake of the guide ring 2 can enter the vortex zone 101 through the gap, changing the gas flow direction at the gap, thereby enhancing the gas pressure loss during gas recirculation, making it less likely to cause airflow loss, improving the air intake and sealing effect, and thus increasing the air intake of the centrifugal fan blade 1, thereby improving the performance of the fan components, further increasing the air intake process, and improving noise. Figure 2 and Figure 5In the figure, the arrow directions are all the gas flow directions, from Figure 2 it can be seen from Figure 2 that the air flow direction in the eddy current area 101 in the prior art is the same as the air flow direction at the air inlet, while from Figure 5 it can be seen from Figure 5 that the air flow direction in the eddy current area 101 in this technical solution is opposite to the air flow direction at the air inlet.

[0026] The guide ring 2 includes a fixing part 21 for fixing, a guiding part 22 for guiding the air flow, and a flow disturbing part 23. Along the axis direction of the centrifugal fan blade 1, the fixing part 21, the guiding part 22, and the flow disturbing part 23 are connected in sequence. The flow disturbing part 23 surrounds the circumferential side of the centrifugal fan blade 1. The guiding part 22 guides the gas about to enter the centrifugal fan blade 1, and at the same time, the flow disturbing part 23 has a flow disturbing effect on the air flow in the eddy current area 101 generated on the circumferential side of the centrifugal fan blade 1 in the prior art, that is, changes the direction of the recirculating gas in the eddy current area 101, resulting in an increase in the pressure loss of the recirculating air, so as to increase the air intake and the sealing effect.

[0027] Preferably, the guide ring 2 is arranged on the housing of the indoor unit or the housing of the ceiling unit.

[0028] The shape of the flow disturbing part 23 is the same as the shape of the side plate 12 of the air inlet, ensuring that the distance between the flow disturbing part 23 and the side plate 12 of the air inlet is uniform. Preferably, the shapes of the flow disturbing part 23 and the side plate 12 of the air inlet are both arc-shaped.

[0029] Along the air inlet direction of the fan assembly, the diameter of the fixing part 21 gradually decreases, the diameter of the flow disturbing part 23 gradually increases, and the minimum diameter of the fixing part 21, the minimum diameter of the flow disturbing part 23, and the diameter of the guiding part 22 are equal. The diameter of the guiding part 22 is larger than the diameter of the air inlet 11 of the centrifugal fan blade 1, ensuring an external fit between the guide ring 2 and the air inlet of the centrifugal fan blade. At the same time, the flow disturbing part 23 can have a reasonable distance fit with the centrifugal fan blade 1 to disturb the gas in the eddy current area 101, thereby changing the direction of the recirculating gas in the eddy current area 101, resulting in an increase in the pressure loss of the recirculating air, and increasing the air intake and the sealing effect.

[0030] The relationship between the diameter D2 of the guiding part 22 and the diameter D1 of the air inlet 11 of the centrifugal fan blade 1 is: 0mm < D2 - D1 < 8mm, avoiding the problem that the diameter D2 of the guiding part 22 is too large to effectively guide the gas, resulting in gas leakage through the gap between the guiding part 22 and the air inlet of the centrifugal fan blade 1, and at the same time avoiding the problem that the diameter D2 of the guiding part 22 is too small to interfere with the structure of the centrifugal fan blade, affecting the structural reliability of the centrifugal fan blade and the fan assembly.

[0031] The diameter of the guide section 22 is the same from the fixed part 21 to the turbulence part 23, that is, the guide section 22 is a straight pipe section, thereby increasing the air intake process and improving noise.

[0032] The guide section 22 extends away from the fixed section 21 to form an extended section. The turbulence section 23 is disposed on the extended section, and the extended section surrounds the periphery of the centrifugal fan blade 1. The extended section is an extension of the length of the guide section on the existing guide ring structure, thereby increasing the fitting depth between the guide section 22 and the air inlet side plate of the centrifugal fan blade 1. The air inlet and return are in a relative state, changing the direction of the return gas in the vortex zone 101, strengthening the gas pressure loss during gas return, making it less likely to cause air volume loss, improving the air intake and sealing effect, thereby increasing the air intake of the centrifugal fan blade 1, thereby improving the performance of the fan assembly, further increasing the air intake flow, and improving noise.

[0033] The length of the guide section 22 is in the range of 15mm to 30mm, so as to avoid the guide section 22 being too large and affecting the air volume, and at the same time, to avoid the guide section 22 being too short and unable to achieve the guiding effect.

[0034] A ceiling fan includes the aforementioned fan assembly.

[0035] 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 fan assembly comprising a centrifugal impeller (1) and a scroll (2), characterised in that: Part of the guide cone (2) surrounds the circumference of the centrifugal fan blade (1), and the diameter of the part of the guide cone (2) surrounding the circumference of the centrifugal fan blade (1) is greater than the diameter of the air inlet (11) of the centrifugal fan blade (1); the guide cone (2) comprises a spoiler part (23), the centrifugal fan blade (1) comprises an air inlet side plate (12), the spoiler part (23) surrounds the circumference of the air inlet side plate (12), and the spoiler part (23) has a spacing with the air inlet side plate (12); the guide cone (2) comprises a fixing part (21) for fixing, a guide part (22) for guiding airflow, and a spoiler part (23), along the axis direction of the centrifugal fan blade (1), the fixing part (21), the guide part (22) and the spoiler part (23) are connected in sequence, and the spoiler part (23) surrounds the circumference of the centrifugal fan blade (1); the guide part (22) extends in a direction away from the fixing part (21) to form an extension part, the spoiler part (23) is arranged on the extension part, and the extension part surrounds the circumference of the centrifugal fan blade (1).

2. The fan assembly of claim 1, wherein: The shape of the spoiler part (23) is the same as that of the air inlet side plate (12).

3. The fan assembly of claim 1, wherein: Along the air inlet direction of the fan assembly, the diameter of the fixing part (21) gradually decreases, the diameter of the spoiler part (23) gradually increases, and the minimum diameter of the fixing part (21), the minimum diameter of the spoiler part (23) and the diameter of the guide part (22) are equal, and the diameter of the guide part (22) is greater than the diameter of the air inlet (11) of the centrifugal fan blade (1).

4. The fan assembly of claim 1, wherein: The relationship between the diameter D2 of the guide part (22) and the diameter D1 of the air inlet (11) of the centrifugal fan blade (1) is: 0mm<D2-D1<8mm.

5. The fan assembly of claim 1, wherein: From the fixing part (21) to the spoiler part (23), the diameter of the guide part (22) is the same.

6. The fan assembly of claim 1, wherein: The length of the guide part (22) ranges from 15mm to 30mm.

7. A patio machine characterized by: The fan assembly comprises any one of claims 1 to 6.

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