CN119934577B - A ceiling-mounted air conditioner fan blade, fan wheel assembly and air conditioner - Google Patents
A ceiling-mounted air conditioner fan blade, fan wheel assembly and air conditionerInfo
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- CN119934577B CN119934577B CN202311398853.0A CN202311398853A CN119934577B CN 119934577 B CN119934577 B CN 119934577B CN 202311398853 A CN202311398853 A CN 202311398853A CN 119934577 B CN119934577 B CN 119934577B
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- fan blade
- edge
- notch
- ceiling
- air conditioner
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Abstract
本发明提供了一种天花机风叶、风轮组件及空调器，所述天花机风叶包括风叶外壳，所述风叶外壳包括压力面和吸力面，在所述风叶外壳的尾缘上设置消音缺口。本发明所述的天花机风叶，通过吹塑一体成型的中空结构，在风叶表面增加凸点的消音结构，且在风叶的尾部增加消音缺口结构，减少由气流在风叶外壳上尾缘附近产生的噪音，提升天花机风叶的性能。
This invention provides a ceiling-mounted air conditioner fan blade, a fan wheel assembly, and an air conditioner. The ceiling-mounted air conditioner fan blade includes a fan blade shell, which includes a pressure surface and a suction surface. A noise-absorbing notch is provided on the trailing edge of the fan blade shell. The ceiling-mounted air conditioner fan blade of this invention, through a blow-molded hollow structure, incorporates a noise-absorbing structure with raised dots on the fan blade surface and a noise-absorbing notch at the trailing edge of the fan blade, reducing noise generated by airflow near the trailing edge of the fan blade shell and improving the performance of the ceiling-mounted air conditioner fan blade.
Description
Technical Field
The invention relates to the technical field of ceiling machines, in particular to a fan blade of a ceiling machine, a wind wheel assembly and an air conditioner.
Background
The ceiling embedded air conditioner is one kind of ceiling embedded air conditioner, and is also called ceiling mounted machine, ceiling mounted machine or embedded air conditioner. The ceiling type air conditioner can be placed in the middle of a room, which is the greatest advantage of the ceiling type air conditioner, and the middle position of the room can be used for better diffusing the cooling capacity and the heat, so that the dead angle of rapid cooling and heating and better elimination of cooling and heating can be achieved.
However, the air conditioner often generates two kinds of noise in the running process, one is mechanical noise, for example, a centrifugal wind wheel is easy to collide with an air guide ring in the radial direction in the running process of the ceiling machine, and noise is generated, and the other is airflow noise, which is often caused by a plurality of factors such as high air flow resistance, serious turbulence phenomenon and the like.
In the prior art, as shown in fig. 1-4, a wind wheel component of a ceiling machine is disclosed, a fan blade 3 on the wind wheel is generally assembled by adopting a first clamping plate 3A and a first clamping plate 3B in a clamping manner, the assembly efficiency is low, deformation is easy to generate due to the influence of wind pressure in the use process, a larger wake flow is formed at the tail part of the fan blade 3, and the air flow noise is obvious.
With the improvement of living standard, consumer pursues to the quality of peace and peace, and the energy efficiency level and the noise size of product are also concerned more and more, how to reduce impeller air flow noise is the technical problem that the technical personnel in the field need to solve all the time.
Disclosure of Invention
In view of the above, the present invention is directed to a fan blade of a ceiling fan, a wind wheel assembly and an air conditioner, so as to reduce the noise of the fan blade.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
A fan blade of a ceiling machine comprises a fan blade shell, wherein the fan blade shell comprises a pressure surface and a suction surface, and a silencing notch is arranged on the tail edge of the fan blade shell.
Furthermore, the tail edge of the fan blade shell is in streamline design which is close to the front edge from the upper edge to the lower edge, and the silencing notch is arranged on the tail edge and is close to the lower edge.
Furthermore, the silencing notch is arranged in an arc shape from the upper edge to the lower edge, and a notch guide surface on the silencing notch is arranged in an inclined shape from one end close to the tail edge to one end close to the front edge.
Further, the height of the lower end of the silencing notch from the lower surface of the lower edge is H 1, the height of the upper end of the silencing notch from the lower surface of the lower edge is H 2, the length of the edge, close to the tail edge, of the center of the silencing notch from the tail part of the lower edge is L 1, and the length of the edge, close to the front edge, of the center of the silencing notch from the tail part of the lower edge is L 2,H1、H2、L1、L2, which satisfies the following relation:
5 (L 2-L1)＞H2-H1＞2(L2-L1), and the value range of H 1 is 0.4L 1～0.65L1.
Further, the angle of the notch guide surface from one end close to the suction surface to the notch tangent plane close to the pressure surface is beta, and the value range of beta is 25-35 degrees.
Further, a plurality of salient points are arranged on the pressure surface of the fan blade.
Furthermore, the convex points are designed in a truncated cone shape, and a plurality of convex points are uniformly distributed on the pressure surface.
Further, a cavity is formed between the pressure surface and the suction surface, and the pressure surface and the suction surface are integrally formed through blow molding.
Compared with the prior art, the fan blade of the ceiling machine has the following advantages:
(1) According to the fan blade of the ceiling machine, the noise of air flow is reduced by arranging the silencing notch on the tail edge of the fan blade shell, the noise performance of equipment is improved, and the use experience of a user is improved.
(2) According to the fan blade of the ceiling machine, through the hollow structure integrally formed by blow molding, the silencing structure of the salient points is added on the surface of the fan blade, and the silencing notch structure is added at the tail part of the fan blade, so that noise generated by air flow near the tail edge of the fan blade shell is reduced, and the performance of the fan blade of the ceiling machine is improved.
Another object of the present invention is to provide a wind wheel assembly, which includes a hub, wherein the edge of the lower end of the hub extends to form a bottom plate, the fan blade is arranged on the bottom plate, the fan blade is inserted on the bottom plate, the upper end of the fan blade is inserted with a guide ring, the guide ring is provided with a penetrating air inlet for air inlet to the wind wheel, and an air outlet is formed among the bottom plate, the guide ring and the fan blade.
A third object of the present invention is to provide an air conditioner, wherein the wind wheel assembly is disposed on the air conditioner, and a hub of the wind wheel assembly is connected with a motor shaft through a shaft sleeve, so that the wind wheel assembly is driven to rotate by the motor.
The air conditioner, the wind wheel assembly and the fan blade of the ceiling machine have the same advantages compared with the prior art, and are not described in detail herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic side view of a prior art ceiling fan rotor assembly;
FIG. 2 is a schematic diagram of an exploded view of a fan blade on a fan wheel assembly of a prior art ceiling machine;
FIG. 3 is a schematic diagram of a first view side view of a fan blade on a prior art ceiling fan rotor assembly;
FIG. 4 is a schematic diagram of a second view side view of a fan blade on a prior art ceiling fan rotor assembly;
FIG. 5 is a schematic side view of a fan blade on a wind wheel assembly of a ceiling fan according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a second view angle of a fan blade on a wind wheel assembly of a ceiling fan according to an embodiment of the present invention;
FIG. 7 is a schematic view of a third view angle of a fan blade on a wind wheel assembly of a ceiling fan according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a dimension marking structure of a notch on a fan blade on a ceiling fan wind wheel assembly according to an embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view of a notch structure on a fan blade of a wind wheel assembly of a ceiling machine according to an embodiment of the present invention;
FIG. 10 is a schematic view of a partially enlarged structure of the angle of a notch cut of a notch structure on a fan blade according to an embodiment of the present invention;
FIG. 11 is a schematic front view of a wind wheel assembly of a ceiling fan according to an embodiment of the present invention;
FIG. 12 is a schematic side view of a wind wheel assembly of a ceiling fan according to an embodiment of the present invention;
FIG. 13 is a schematic view of a wheel assembly mounted on a chassis in a ceiling fan in accordance with an embodiment of the present invention;
Reference numerals illustrate:
1. The wind turbine comprises a hub, 2 parts of a bottom plate, 3 parts of wind blades, 3A parts of a first clamping plate, 3B parts of a first clamping plate, 301 parts of a front edge, 302 parts of a tail edge, 303 parts of a top edge, 304 parts of a bottom edge, 31 parts of a wind blade shell, 311 parts of a pressure surface, 312 parts of a suction surface, 32 parts of a silencing notch, 321 parts of a notch guide surface, 33 parts of a convex point, 4 parts of a guide ring, 5 parts of an air outlet, 6 parts of a shaft sleeve, 7 parts of a motor shaft.
Detailed Description
In order to facilitate understanding of the technical means, objects and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
It should be noted that all terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "low", "lateral", "longitudinal", "center", etc. used herein are merely used to explain the relative positional relationship, connection, etc. between the various components in a particular state (as shown in the drawings) for convenience of description of the present invention, and do not require that the present invention must be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, directly connected, indirectly connected via an intermediate medium, or communicating between the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Example 1
As shown in fig. 5-10, the invention discloses a fan blade of a ceiling machine, which comprises a fan blade shell 31, wherein the fan blade shell 31 comprises a pressure surface 311 and a suction surface 312, and a silencing notch 32 is arranged on a tail edge 302 of the fan blade shell 31.
According to the ceiling fan blade, the silencing notch 32 is arranged on the tail edge of the fan blade shell 31, when air flows pass through the tail edge 302 of the fan blade, vortex is formed, the silencing notch 32 can reduce the size and strength of vortex, meanwhile, the pressure difference between the pressure surface 311 and the suction surface 312 at the position of the tail edge 302 on the fan blade shell 31 is reduced, turbulence and resistance of the air flow are reduced, noise generated by the air flow near the tail edge of the fan blade shell is reduced, and the performance of the fan blade 3 of the ceiling fan is improved.
According to the ceiling fan blade disclosed by the application, the airflow noise is reduced by arranging the silencing notch 32 on the tail edge 302 of the fan blade shell 31, the noise performance of equipment is improved, and the use experience of a user is improved.
As a preferred example of the present application, the tail edge 302 of the fan housing 31 is in a streamline design from the upper edge 303 to the lower edge 304, and the silencing notch 32 is disposed on the tail edge 302 near the lower edge 304.
This arrangement helps to further reduce the turbulence created by the airflow around the trailing edge 302, more effectively directing the airflow through and reducing the area of turbulence, while providing noise abatement notches 32 in this area can interfere with turbulence, thereby reducing noise, improving fan blade performance, and possibly improving energy efficiency, as the location on the trailing edge 302 near the lower edge 304 is generally where the airflow splits and turbulence is created.
As a preferred example of the present application, the silencing notch 32 is disposed in an arc shape from the upper edge 303 to the lower edge 304, and the notch guiding surface 321 on the silencing notch 32 is disposed in an inclined shape from one end near the tail edge 302 to one end near the front edge 301. The overall structure is arc and breach guide surface 321 is the slope form setting for on the air current of fan blade 3 water conservancy diversion can smooth through amortization breach 32, reduce the turbulent flow and the resistance of air current, thereby noise level is reduced, still helps reducing the formation of vortex simultaneously, improves the stability of air current and improves the efficiency of fan blade, better control the flow of air current, and reduce the mechanism that produces the noise, improve the wholeness ability of fan blade 3.
As a preferred example of the present application, the height of the lower end of the silencing notch 32 from the lower surface of the lower edge 304 is H 1, the height of the upper end of the silencing notch 32 from the lower surface of the lower edge 304 is H 2, the length of the edge near the center of the silencing notch 32 near the tail edge 302 from the tail of the lower edge 304 is L 1, and the length of the edge near the center of the silencing notch 32 near the front edge 301 from the tail of the lower edge 304 is L 2,H1、H2、L1、L2, which satisfies the following relationship:
5 (L 2-L1)＞H2-H1＞2(L2-L1), and the value range of H 1 is 0.4L 1～0.65L1.
Specifically, as shown in fig. 8, based on the lower section of the tail edge 302 of the fan blade 3, the width of the silencing notch 32 between the front edge 301 and the tail edge 302 is in the X direction, the height of the silencing notch 32 between the upper edge 303 and the lower edge 304 is in the Y direction, the length of the silencing notch 32 in the X direction is 16mm to 25mm, and the height in the Y direction is 8mm to 38mm, specifically, L 1＝16.18mm,L2＝24.36mm,H1＝8.36mm,H2 =38mm. The height and length parameters of the silencing notch 32 and the relation between the parameters may have an important influence on noise control, and through simulation and experimental measurement, the parameters are limited in the limited range, so that a better effect can be achieved, on one hand, the finally formed fan blade 3 has a larger air outlet quantity, the working efficiency of the fan blade 3 is ensured, on the other hand, the arrangement is favorable for reducing air flow noise, the air outlet noise can be effectively controlled, the performance requirements of balanced noise control and the fan blade are met, and the performance of the fan blade 3 is optimized.
As a preferred example of the present application, the notch guide surface 321 has a notch tangential plane angle β from one end near the suction surface 312 to the pressure surface 311, and the value of β ranges from 25 ° to 35 °. Preferably, the value of β is 28 ° to 30 °. According to the fan blade 3, the incision tangent plane angle beta of the silencing notch 32 is optimized, so that vortex generation is avoided or weakened, the regularity and stability of airflow flow are improved, airflow flow noise is further avoided, and airflow flow noise is reduced.
As a preferred example of the present application, a plurality of bumps 33 are disposed on the pressure surface 311 of the fan blade 3. Preferably, the protruding points 33 are designed in a truncated cone shape, and a plurality of protruding points 33 are uniformly distributed on the pressure surface 311. Through set up a plurality of equipartitions and arrange bump 33 on pressure face 311, can disturb the flow of air current, reduce the turbulent flow and produce to reach the purpose that reduces the air current noise that the fan blade produced when the operation, simultaneously, the existence of bump 33 still helps controlling the separation of air current on fan blade 3 surface, increases the fan blade wind-force, thereby improves the purpose of noise control performance.
As a preferred example of the present application, a cavity is formed between the pressure surface 311 and the suction surface 312, and the pressure surface 311 and the suction surface 312 are integrally formed by blow molding. The structural strength of the fan blade 3 can be increased by forming a cavity and integrally forming the fan blade through blow molding, the design can enable the fan blade to be more durable, particularly under high-speed and high-load working conditions, meanwhile, the cavity formed between the pressure surface 311 and the suction surface 312 can absorb part of noise vibration, reduce the noise transmitted to the outside, reduce the vibration and noise level of the fan blade, reduce the generation and loss of vortex and improve the pneumatic efficiency of the fan blade. In addition, by blow molding, the fan blade 3 can be manufactured more easily and economically, and the number of parts and the complexity of assembly can be reduced.
According to the fan blade 3 of the ceiling machine, through the hollow structure integrally formed by blow molding, the silencing structure of the convex points 33 is added on the surface of the fan blade 3, and the silencing notch 32 is added at the tail of the fan blade 3, so that noise generated by air flow near the tail edge 302 of the fan blade shell 31 is reduced, the performance of the fan blade of the ceiling machine is improved, and the use experience of a user is improved.
Example 2
As shown in fig. 5 to 13, the application also discloses a wind wheel assembly, which comprises a hub 1, wherein the edge of the lower end of the hub 1 extends to form a bottom plate 2, the bottom plate 2 is provided with the fan blade 3 in the embodiment 1, the fan blade 3 is inserted into the bottom plate 2, the upper end of the fan blade 3 is inserted into a guide ring 4, the guide ring 4 is provided with a penetrating air inlet for air inlet to the wind wheel, and an air outlet 5 is formed among the bottom plate 2, the guide ring 4 and the fan blade 3. Therefore, in the process of rotating the wind wheel assembly, air is fed from the air inlet of the guide ring 4, and finally air is discharged from the air outlet 5, so that air flow is realized.
The application also discloses an air conditioner which comprises the wind wheel assembly, wherein the hub 1 of the wind wheel assembly is connected with the motor shaft 7 through the shaft sleeve 6, and is driven by the motor to rotate.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The utility model provides a smallpox machine fan blade, its characterized in that includes fan blade shell (31), fan blade shell (31) are including pressure face (311) and suction face (312) set up amortization breach (32) on tail edge (302) of fan blade shell (31), the height of amortization breach (32) lower extreme from lower surface of lower limb (304) is H 1, the height of amortization breach (32) upper end from lower surface of lower limb (304) is H 2, the border that is close to tail edge (302) in amortization breach (32) center department is apart from the length of lower limb (304) afterbody is L 1, the border that is close to leading edge (301) in amortization breach (32) center department is apart from the length of lower limb (304) afterbody is L 2,H1、H2、L1、L2 and satisfies following relation:
5 (L 2-L1)＞H2-H1＞2(L2-L1), and H 1 has a value of 0.4L 1～0.65L1.
2. Ceiling fan blade according to claim 1, characterized in that the trailing edge (302) of the fan blade housing (31) is of streamlined design, which tends towards the leading edge (301) from the upper edge (303) to the lower edge (304), the sound-damping gap (32) being arranged on the trailing edge (302) close to the lower edge (304).
3. The fan blade according to claim 1 or 2, wherein the silencing notch (32) is arranged in an arc shape from the upper edge (303) to the lower edge (304), and the notch guiding surface (321) on the silencing notch (32) is arranged in an inclined shape from one end close to the tail edge (302) to one end close to the front edge (301).
4. A ceiling fan blade according to claim 3, characterized in that the notch guide surface (321) has a notch tangential plane angle β from one end close to the suction surface (312) to the pressure surface (311), and β has a value in the range of 25 ° to 35 °.
5. The ceiling fan blade according to claim 1 or 4, characterized in that a number of bumps (33) are provided on the pressure surface (311) of the fan blade.
6. The fan blade of a ceiling fan according to claim 5, wherein the protruding points (33) are designed in a truncated cone shape, and a plurality of protruding points (33) are uniformly distributed on the pressure surface (311).
7. Ceiling fan blade according to claim 1 or 6, characterized in that a cavity is formed between the pressure surface (311) and the suction surface (312), the pressure surface (311) and the suction surface (312) being integrally formed by blow moulding.
8. The utility model provides a wind wheel subassembly, its characterized in that, includes wheel hub (1), wheel hub (1) lower extreme edge extends and forms bottom plate (2) set up on bottom plate (2) the smallpox machine fan blade of arbitrary one of claims 1~7, fan blade (3) are pegged graft on bottom plate (2) upper end grafting water conservancy diversion circle (4) of fan blade (3), set up the air intake that runs through on water conservancy diversion circle (4) for to the wind wheel air inlet, form air outlet (5) between bottom plate (2), water conservancy diversion circle (4), fan blade (3).
9. An air conditioner is characterized in that the air conditioner is provided with the wind wheel assembly as claimed in claim 8, and a hub (1) of the wind wheel assembly is connected with a motor shaft (7) through a shaft sleeve (6) so as to be driven by the motor to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311398853.0A CN119934577B (en) | 2023-10-26 | 2023-10-26 | A ceiling-mounted air conditioner fan blade, fan wheel assembly and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311398853.0A CN119934577B (en) | 2023-10-26 | 2023-10-26 | A ceiling-mounted air conditioner fan blade, fan wheel assembly and air conditioner |
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| Publication Number | Publication Date |
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| CN119934577A CN119934577A (en) | 2025-05-06 |
| CN119934577B true CN119934577B (en) | 2025-12-05 |
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| CN202311398853.0A Active CN119934577B (en) | 2023-10-26 | 2023-10-26 | A ceiling-mounted air conditioner fan blade, fan wheel assembly and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN221098792U (en) * | 2023-10-26 | 2024-06-07 | 宁波奥克斯电气股份有限公司 | Ceiling fan blade, wind wheel assembly and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202165316U (en) * | 2011-07-28 | 2012-03-14 | 元山科技工业股份有限公司 | Fan blade device for cooling fan with noise reduction effect |
| KR101466261B1 (en) * | 2013-02-27 | 2014-11-28 | 삼성중공업 주식회사 | Structure for damping noise of axial fan |
| CN207814038U (en) * | 2017-12-11 | 2018-09-04 | 珠海格力电器股份有限公司 | Cross-flow fan blade, cross-flow fan blade, indoor unit and air conditioner |
| CN208900387U (en) * | 2018-08-14 | 2019-05-24 | 顿力集团有限公司 | Low noise blade and blower with low noise blade |
| CN211474520U (en) * | 2019-11-29 | 2020-09-11 | 广东美的制冷设备有限公司 | Axial flow wind wheel and air conditioner |
| CN215927905U (en) * | 2021-08-24 | 2022-03-01 | 宁波奥克斯电气股份有限公司 | Axial flow fan blade and air conditioner |
| CN115507058B (en) * | 2022-10-28 | 2024-04-02 | Tcl空调器(中山)有限公司 | Axial flow wind wheel, air conditioner outdoor unit and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN221098792U (en) * | 2023-10-26 | 2024-06-07 | 宁波奥克斯电气股份有限公司 | Ceiling fan blade, wind wheel assembly and air conditioner |
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