CN214404098U - Wind wheel and fan - Google Patents
Wind wheel and fan Download PDFInfo
- Publication number
- CN214404098U CN214404098U CN202023086449.4U CN202023086449U CN214404098U CN 214404098 U CN214404098 U CN 214404098U CN 202023086449 U CN202023086449 U CN 202023086449U CN 214404098 U CN214404098 U CN 214404098U
- Authority
- CN
- China
- Prior art keywords
- groove
- turbulence
- edge
- hub
- wind wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Wind Motors (AREA)
Abstract
The utility model relates to a fan technical field discloses a wind wheel and fan. The wind wheel includes a hub. The wind wheel also comprises a blade, wherein the blade is provided with a blade root, an outer edge, a front edge, a rear edge and a pressure surface, the blade root is connected with the hub, the outer edge is far away from the hub relative to the blade root, the front edge and the rear edge are oppositely arranged, two ends of the front edge are respectively connected with the blade root and the outer edge, two ends of the rear edge are respectively connected with the blade root and the outer edge, and the pressure surface is respectively connected with the blade root, the outer edge, the front edge and the rear edge. The wind wheel further comprises a turbulence groove, the turbulence groove is arranged on the pressure surface and extends along the direction of the front edge towards the rear edge, and the turbulence groove is used for inhibiting airflow from flowing along the direction of the blade root towards the outer edge. In this way, the utility model discloses can improve the pneumatic efficiency of wind wheel and noise reduction.
Description
Technical Field
The utility model relates to a fan technical field especially relates to a wind wheel and fan.
Background
Currently, a wind wheel applied to an axial flow fan can generate an airflow flowing in an axial direction of the axial flow fan by its own rotation. However, the airflow generated by the wind wheel also obtains tangential momentum, and simultaneously obtains radial momentum under the action of coriolis force, and the tangential momentum and the radial momentum are combined to ensure that the airflow not only flows along the axial direction, but also flows along the radial direction of the axial flow fan.
Obviously, the current product requirement of the axial flow fan is that the axial flow fan is expected to have a larger axial air flow, and the air flow flowing along the radial direction of the axial flow fan will inevitably cause the air flow flowing along the axial direction of the axial flow fan to be reduced, which is not beneficial to improving the aerodynamic efficiency of the axial flow fan and also can generate more serious noise.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses the main technical problem who solves provides a wind wheel and fan, can improve the aerodynamic efficiency of wind wheel and noise reduction.
In order to solve the technical problem, the utility model discloses a technical scheme be: a wind wheel is provided. The wind wheel includes a hub. The wind wheel also comprises a blade, wherein the blade is provided with a blade root, an outer edge, a front edge, a rear edge and a pressure surface, the blade root is connected with the hub, the outer edge is far away from the hub relative to the blade root, the front edge and the rear edge are oppositely arranged, two ends of the front edge are respectively connected with the blade root and the outer edge, two ends of the rear edge are respectively connected with the blade root and the outer edge, and the pressure surface is respectively connected with the blade root, the outer edge, the front edge and the rear edge. The wind wheel further comprises a turbulence groove, the turbulence groove is arranged on the pressure surface and extends along the direction of the front edge towards the rear edge, and the turbulence groove is used for inhibiting airflow from flowing along the direction of the blade root towards the outer edge.
In an embodiment of the present invention, the number of the turbulent flow grooves is at least two, and the at least two turbulent flow grooves are sequentially spaced along the direction of the blade root toward the outer edge.
In an embodiment of the present invention, the turbulence groove farthest from the hub in the at least two turbulence grooves is the target turbulence groove, and the distance L between the end of the target turbulence groove near the leading edge and the hub1Radius R of the hub0And radius R of the wind wheel1Has the following relationship:
0.25(R1-R0)≤L1≤0.5(R1-R0)。
in an embodiment of the present invention, the turbulence groove farthest from the hub in the at least two turbulence grooves is the target turbulence groove, and the target turbulence groove is close to the end of the trailing edge and the distance L between the hub2Radius R of the hub0And radius R of the wind wheel1Has the following relationship:
0.1(R1-R0)≤L2≤0.2(R1-R0)。
in an embodiment of the present invention, the width L of the turbulent flow groove3Distance L between adjacent turbulent flow grooves4Has the following relationship:
L3≤L4≤1.8L3。
the utility model discloses an in the embodiment, the distance that vortex groove is close to between tip and the wheel hub of leading edge is first distance, and the distance that vortex groove is close to between tip and the wheel hub of trailing edge is the second distance, and first distance is greater than the second distance.
In an embodiment of the present invention, the spoiler groove is disposed near the blade root on the pressure surface.
In an embodiment of the present invention, the value range of the width of the turbulent flow groove is 3mm to 6 mm.
In an embodiment of the present invention, the blade further has a suction surface, the suction surface is disposed opposite to the pressure surface, and the bottom surface of the turbulent flow groove is closer to the suction surface than the pressure surface; or the wind wheel comprises at least two turbulence ribs, the at least two turbulence ribs are convexly arranged on the pressure surface, and a turbulence groove is formed between every two adjacent turbulence ribs.
In order to solve the above technical problem, the utility model discloses a still another technical scheme be: a blower is provided. The wind turbine comprises the wind wheel set forth in the above embodiments.
The utility model has the advantages that: be different from prior art, the utility model provides a wind wheel and fan. This wind wheel includes the vortex groove, and the pressure surface of blade is located to the vortex groove extends along the leading edge of blade towards the direction of trailing edge. The air current can receive the restriction of vortex groove after getting into the vortex groove, and the vortex groove can hinder the air current to flow along the blade root of blade towards the direction of outer fringe, hinders the radial flow of air current along the wind wheel promptly to reach the purpose that restraines the radial flow of air current, and then make the axial flow of air current along the wind wheel as much as possible, be favorable to improving the aerodynamic efficiency of wind wheel and noise reduction.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. Moreover, the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
Fig. 1 is a schematic structural view of an embodiment of the wind wheel of the present invention;
FIG. 2 is a side view schematic of the wind turbine shown in FIG. 1;
figure 3 is an enlarged schematic view of the area a of the rotor shown in figure 1;
fig. 4 is a schematic structural view of another embodiment of the wind wheel of the present invention;
fig. 5 is a schematic structural diagram of an embodiment of the fan of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
For the lower and great technical problem of noise of the aerodynamic efficiency who solves axial fan among the prior art, an embodiment of the utility model provides a wind wheel. The wind wheel includes a hub. The wind wheel also comprises a blade, wherein the blade is provided with a blade root, an outer edge, a front edge, a rear edge and a pressure surface, the blade root is connected with the hub, the outer edge is far away from the hub relative to the blade root, the front edge and the rear edge are oppositely arranged, two ends of the front edge are respectively connected with the blade root and the outer edge, two ends of the rear edge are respectively connected with the blade root and the outer edge, and the pressure surface is respectively connected with the blade root, the outer edge, the front edge and the rear edge. The wind wheel further comprises a turbulence groove, the turbulence groove is arranged on the pressure surface and extends along the direction of the front edge towards the rear edge, and the turbulence groove is used for inhibiting airflow from flowing along the direction of the blade root towards the outer edge. As described in detail below.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an embodiment of the wind wheel of the present invention, and fig. 2 is a schematic side view of the wind wheel shown in fig. 1.
In an embodiment, wind turbine 10 includes a hub 11 and blades 12 connected to hub 11. The number of the blades 12 is one or more, and the blades 12 are sequentially spaced in the circumferential direction of the hub 11. The hub 11 is in transmission connection with a driving device such as a motor, so that the driving device drives the hub 11 to rotate around the central axis of the hub 11, and further drives the blades 12 connected to the hub 11 to rotate around the central axis of the hub 11, thereby generating wind flow.
Each blade 12 has a root 121, an outer edge 122, a leading edge 123, a trailing edge 124, a pressure side 125, and a suction side 126. Blade root 121 of blade 12 is connected to hub 11, and the edge of blade 12 opposite blade root 121 is outer edge 122. The leading edge 123 and the trailing edge 124 of the blade 12 are oppositely arranged, two ends of the leading edge 123 are respectively connected with the blade root 121 and the outer edge 122, two ends of the trailing edge 124 are also respectively connected with the blade root 121 and the outer edge 122, and the leading edge 123 of the circumferential wind flow blade 12 caused by the motion of the blade 12 flows to the trailing edge 124. The pressure side 125 and the suction side 126 of the blade 12 are disposed opposite one another, and the side of the suction side 126 of the axial wind flow caused by the movement of the blade 12 flows to the side of the pressure side 125.
Because the requirement for the performance of the air conditioner outdoor unit is continuously improved at present, however, the size of the box body of the air conditioner outdoor unit is not too large, the diameter of the wind wheel applied to the air conditioner outdoor unit is limited, the requirement for the performance of the air conditioner outdoor unit is met by improving the running rotating speed of the wind wheel, and therefore serious pneumatic noise is inevitably generated, and the using comfort of a user is influenced. In addition, the diameter of the wind wheel applied to the existing air conditioner outdoor unit is usually large, so that the weight of the wind wheel is large, which means that the cost is high. Therefore, the problems of high noise, high cost, low efficiency, low pressure resistance and the like in the operation of the conventional air conditioner outdoor unit, such as a multi-connected air conditioner outdoor unit and the like, generally exist in the adopted axial flow fan.
The wind wheel applied to the current axial flow fan can generate airflow flowing along the axial direction of the axial flow fan through the rotation of the wind wheel. However, the airflow generated by the wind wheel also obtains tangential momentum, and simultaneously obtains radial momentum under the action of coriolis force, and the tangential momentum and the radial momentum are combined to ensure that the airflow not only flows along the axial direction, but also flows along the radial direction of the axial flow fan. Obviously, the current product requirement of the axial flow fan is that the axial flow fan is expected to have a larger axial air flow, and the air flow flowing along the radial direction of the axial flow fan will inevitably cause the axial air flow to be reduced, which is not beneficial to improving the aerodynamic efficiency of the axial flow fan, and will also generate more serious noise.
In view of this, the wind turbine 10 of the present embodiment further includes a spoiler groove 13. The spoiler groove 13 is provided on the pressure surface 125 of the blade 12. The spoiler groove 13 extends in a direction from the leading edge 123 towards the trailing edge 124 of the blade 12. The turbulence grooves 13 serve to suppress the airflow in the direction of the blade root 121 of the blade 12 toward the outer edge 122.
It can be seen that the spoiler groove 13 extends along the leading edge 123 of the blade 12 towards the trailing edge 124, meaning that the extending direction of the spoiler groove 13 is arranged at an angle to the radial direction of the wind turbine 10, i.e. the extending direction of the spoiler groove 13 is arranged crosswise to the radial direction of the wind turbine 10. In this way, after the airflow flowing along the direction from the blade root 121 of the blade 12 to the outer edge 122, that is, the airflow flowing along the radial direction of the wind wheel 10 enters the spoiler groove 13, the groove wall of the spoiler groove 13 may hinder the airflow from continuing to flow along the radial direction of the wind wheel 10, that is, the airflow may be restricted by the spoiler groove 13 after entering the spoiler groove 13, so as to achieve the purpose of inhibiting the airflow from flowing along the radial direction, and further, the airflow may flow along the axial direction of the wind wheel 10 as much as possible, which is beneficial to improving the aerodynamic efficiency of the wind wheel 10 and reducing noise.
Referring to fig. 3, fig. 3 is an enlarged schematic view of a region a of the wind turbine shown in fig. 1.
In one embodiment, the bottom surface of the turbulator slot 13 is closer to the suction surface than the pressure surface 125 of the blade 12. That is, the pressure surface 125 of the blade 12 is recessed toward the side where the suction surface is located, thereby forming the spoiler 13. Of course, it can also be understood that the portion of the blade 12 corresponding to the spoiler groove 13 is missing, and thus the spoiler groove 13 is formed, which means that the weight of the blade 12 is reduced, which is beneficial to reduce the material cost of the wind turbine 10. FIG. 3 illustrates, by way of example only, and not by way of limitation, a situation in which the bottom surface of the turbulator groove 13 is closer to the suction surface than the pressure surface 125 of the blade 12.
Referring to fig. 4, fig. 4 is a schematic structural diagram of another embodiment of the wind wheel of the present invention.
In an alternative embodiment, the wind turbine 10 further includes at least two spoiler ribs 14, and the at least two spoiler ribs 14 protrude from the pressure surface 125 of the blade 12. The at least two spoiler ribs 14 extend along the leading edge 123 of the blade 12 towards the trailing edge 124, and the at least two spoiler ribs 14 are sequentially spaced apart along the root 121 of the blade 12 towards the outer edge 122.
The spoiler grooves 13 are formed between adjacent spoiler ribs 14, that is, the bottom surfaces of the spoiler grooves 13 are located on the pressure surface 125 in this embodiment. The difference between this embodiment and the above embodiments is that the bottom surface of the turbulence groove 13 is not closer to the suction surface than the pressure surface 125, but the bottom surface of the turbulence groove 13 is closer to the suction surface than the pressure surface 125.
Of course, in other embodiments of the present invention, the bottom surface of the spoiler groove 13 may be closer to the suction surface than the pressure surface 125 of the blade 12, and the spoiler groove 13 is formed by the spoiler rib 14 protruding from the pressure surface 125. That is, the spoiler groove 13 is formed between the adjacent spoiler ribs 14, and the bottom surface of the spoiler groove 13 is closer to the suction surface than the pressure surface 125 of the blade 12, which is not limited herein.
Please continue to refer to fig. 1. In an embodiment, since the position of the blade 12 close to the outer edge 122 has a high efficiency of performing work on the airflow, that is, the position of the blade 12 close to the outer edge 122 generates a high flow rate and a high efficiency of the airflow, in order to ensure the overall aerodynamic efficiency of the wind turbine 10, the position of the blade 12 close to the outer edge 122 should be kept as smooth as possible, and the turbulence groove 13 is disposed on the pressure surface 125 of the blade 12 close to the blade root 121 in this embodiment, so as to avoid the turbulence groove 13 being disposed on the blade 12 close to the outer edge 122 as much as possible.
For example, the blade 12 is located at 60% -85% of the radius of the wind wheel 10, which has a high efficiency of working the airflow, and therefore needs to be kept as smooth as possible, so in this embodiment, the turbulence groove 13 is located at a position where the blade 12 is located below 60% of the radius of the wind wheel 10, so as to ensure the aerodynamic efficiency of the wind wheel 10 as a whole as much as possible.
Please continue to refer to fig. 1. In one embodiment, the distance between the end of the spoiler groove 13 near the leading edge 123 and the hub 11 is a first distance, and the distance between the end of the spoiler groove 13 near the trailing edge 124 and the hub 11 is a second distance, wherein the first distance is greater than the second distance. In this way, the extending direction of the turbulence groove 13 is arranged at an angle with the direction from the leading edge 123 of the blade 12 towards the trailing edge 124, i.e. crosswise. Because the produced air current of blade 12 rotation flows towards the direction of trailing edge 124 along the leading edge 123 of blade 12, the extending direction of this embodiment spoiler groove 13 and the leading edge 123 of blade 12 are towards the direction of trailing edge 124 and are angled the setting, the extending direction of spoiler groove 13 and the flow direction of air current on blade 12 are angled the setting promptly, there is the intersection in the extending direction of spoiler groove 13 and the flow direction of air current, can conveniently guide the air current to flow in spoiler groove 13, make the air current that flows in spoiler groove 13 receive the restriction of spoiler groove 13, and then restrain the radial flow of air current along wind wheel 10, further be favorable to improving the aerodynamic efficiency of wind wheel 10 and noise reduction.
For example, taking the target spoiler groove 131 described below as an example, the target spoiler groove 131 is the spoiler groove 13 on the blade 12 farthest from the hub 11, and the distance L is shown in fig. 11I.e. the distance between the end of the target spoiler groove 131 close to the leading edge 123 and the hub 11, i.e. the distance L1Is a first distance, distance L shown in FIG. 12I.e. the distance between the end of the target spoiler groove 131 close to the trailing edge 124 and the hub 11, i.e. the distance L2Is a second distance, wherein L1>L2I.e. the first distance is larger than the second distance, it is possible to arrange the extension direction of the spoiler groove 13 at an angle to the direction of the leading edge 123 towards the trailing edge 124 of the blade 12.
Please continue to refer to fig. 1 and 2. In an embodiment, the number of the spoiler grooves 13 is at least two, and the at least two spoiler grooves 13 are sequentially spaced along the direction from the blade root 121 to the outer edge 122 of the blade 12. In this way, the increase of the number of the spoiler grooves 13 is beneficial to further improving the effect of the spoiler grooves 13 on inhibiting the airflow from flowing along the direction from the blade root 121 of the blade 12 to the outer edge 122, that is, the effect of the spoiler grooves 13 on inhibiting the airflow from flowing along the radial direction of the wind wheel 10 is further improved, so as to further ensure that the airflow flows along the axial direction of the wind wheel 10 as much as possible, and further beneficial to improving the aerodynamic efficiency of the wind wheel 10 and reducing the noise.
Further, the spoiler groove 13 farthest from the hub 11 of the at least two spoiler grooves 13 is the target spoiler groove 131, and a distance L between an end of the target spoiler groove 131 close to the leading edge 123 and the hub 111Radius R of hub 110And radius R of wind wheel 101Has the following relationship:
0.25(R1-R0)≤L1≤0.5(R1-R0). Wherein, the distance L1Is a distance in the radial direction of the wind rotor 10.
And, the distance L between the end of the target spoiler groove 131 near the trailing edge 124 and the hub 112Radius R of hub 110And radius R of wind wheel 101Has the following relationship:
0.1(R1-R0)≤L2≤0.2(R1-R0). Wherein, the distance L2Is a distance in the radial direction of the wind rotor 10.
In the above manner, the distance between the end of target spoiler groove 131 close to leading edge 123 and hub 11 is greater than the distance between the end of target spoiler groove 131 close to trailing edge 124 and hub 11, i.e., L1>L2The extending direction that can make these at least two spoiling groove 13 and the leading edge 123 of blade 12 towards the direction of trailing edge 124 and become angle setting, the extending direction of these at least two spoiling groove 13 becomes angle setting with the flow direction of air current on blade 12 promptly, there is intersection in the extending direction of spoiling groove 13 and the flow direction of air current, can conveniently guide the air current to flow in spoiling groove 13, make the air current that flows in spoiling groove 13 receive the restriction of spoiling groove 13, and then restrain the radial flow of air current along wind wheel 10, further be favorable to improving the aerodynamic efficiency of wind wheel 10 and noise reduction.
Moreover, the distance between the end part of the target spoiler groove 131 close to the leading edge 123 and the hub 11 satisfies the above dimensional relationship, so that one side of the at least two spoiler grooves 13 facing the leading edge 123 has a sufficient size, it is ensured that enough airflow can enter the spoiler groove 13 and be restricted by the spoiler groove 13, and the effect of the spoiler groove 13 on inhibiting the airflow from flowing along the radial direction of the wind wheel 10 is further ensured, so as to further ensure that as much as possible of the airflow flows along the axial direction of the wind wheel 10, which is further beneficial to improving the aerodynamic efficiency of the wind wheel 10 and reducing noise.
The distance between the end of the target spoiler groove 131 close to the rear edge 124 and the hub 11 satisfies the above dimensional relationship, and the angle between the extending direction of the at least two spoiler grooves 13 and the direction from the front edge 123 of the blade 12 to the rear edge 124 is sufficient to guide the airflow to the spoiler grooves 13, so that the airflow flowing into the spoiler grooves 13 is restricted by the spoiler grooves 13, thereby suppressing the airflow from flowing in the radial direction of the wind turbine 10, further facilitating the improvement of the aerodynamic efficiency of the wind turbine 10 and the reduction of noise.
Please continue to refer to fig. 3. In an embodiment, the number of the spoiler grooves 13 is at least two, and the at least two spoiler grooves 13 are sequentially spaced along the direction from the blade root 121 to the outer edge 122 of the blade 12. Wherein, the width L of the turbulent flow groove 133Distance L from adjacent turbulent groove 134Has the following relationship:
L3≤L4≤1.8L3。
through the mode, the width of the turbulence groove 13 and the distance between the adjacent turbulence grooves 13 can be matched, the effect that the turbulence groove 13 inhibits the airflow from flowing along the radial direction of the wind wheel 10 is favorably ensured, the airflow flows along the axial direction of the wind wheel 10 as much as possible is further ensured, and the aerodynamic efficiency of the wind wheel 10 is further favorably improved and the noise is reduced. The width of the turbulence grooves 13 is not too small, the distance between adjacent turbulence grooves 13 is not too large, the situation that the radial airflow cannot be well inhibited due to too small width and too sparse distribution of the turbulence grooves 13 can be avoided, meanwhile, the width of the turbulence grooves 13 is not too large, the distance between adjacent turbulence grooves 13 is not too small, the situation that the strength of the blades 12 is affected or the weight of the blades 12 is excessively increased due to too large width and too dense distribution of the turbulence grooves 13 can be avoided.
Optionally, the width L of the spoiler groove 133The range of (a) is 3mm to 6mm, for example 3mm, 4mm, 5mm, 6mm, etc. Therefore, the width of the turbulence groove 13 can be reasonable, which is beneficial to ensuring the effect of the turbulence groove 13 for inhibiting the airflow from flowing along the radial direction of the wind wheel 10, and is further beneficial to improving the aerodynamic efficiency of the wind wheel 10 and reducing the noise. The width of the turbulent flow groove 13 is not too small, so that the effect of well suppressing radial airflow due to too small width of the turbulent flow groove 13 can be avoided, and the width of the turbulent flow groove 13 is not too large, so that especially for the turbulent flow groove 13 formed in a manner that the pressure surface 125 of the blade 12 is recessed toward the suction surface side, the influence of too large width of the turbulent flow groove 13 on the strength of the blade 12 can be avoided.
In an embodiment, the distance between any adjacent spoiler grooves 13 may be equal, that is, the at least two spoiler grooves 13 are uniformly spaced along the direction from the root 121 to the outer edge 122 of the blade 12. Of course, the distance between any adjacent spoiler grooves 13 may also be differently arranged, that is, the at least two spoiler grooves 13 are non-uniformly spaced along the direction from the blade root 121 to the outer edge 122 of the blade 12.
To sum up, the utility model provides a wind wheel, it includes the vortex groove, and the pressure surface of blade is located to the vortex groove extends along the leading edge of blade towards the direction at trailing edge. The air current can receive the restriction of vortex groove after getting into the vortex groove, and the vortex groove can hinder the air current to flow along the blade root of blade towards the direction of outer fringe, hinders the radial flow of air current along the wind wheel promptly to reach the purpose that restraines the radial flow of air current, and then make the axial flow of air current along the wind wheel as much as possible, be favorable to improving the aerodynamic efficiency of wind wheel and noise reduction.
Please refer to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of a fan according to the present invention.
In an embodiment, the wind turbine comprises a wind wheel 10. The wind wheel 10 has been described in detail in the above embodiments, and will not be described in detail here. Further, the wind turbine further comprises a driving device 20, and the driving device 20 is in transmission connection with the wind wheel 10 to drive the wind wheel 10 to rotate through the driving device 20, so as to generate wind current. Alternatively, the driving device 20 may be a motor or the like, and is not limited thereto.
The fan of this embodiment may be an axial flow fan, and the concept and the working principle of the axial flow fan belong to the understanding scope of those skilled in the art, and are not described herein again. The fan of the embodiment may be applied to an outdoor unit of an air conditioning system, and the like, especially an outdoor unit of a multi-connected air conditioner, and the like, which is not limited herein.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Furthermore, in the present invention, unless otherwise expressly specified or limited, the terms "connected," "stacked," and the like are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A wind turbine, comprising:
a hub;
the blade is provided with a blade root, an outer edge, a front edge, a rear edge and a pressure surface, wherein the blade root is connected with the hub, the outer edge is far away from the hub relative to the blade root, the front edge and the rear edge are oppositely arranged, two ends of the front edge are respectively connected with the blade root and the outer edge, two ends of the rear edge are respectively connected with the blade root and the outer edge, and the pressure surface is respectively connected with the blade root, the outer edge, the front edge and the rear edge;
the flow disturbing groove is arranged on the pressure surface, extends along the direction of the leading edge towards the trailing edge and is used for inhibiting airflow from flowing along the direction of the blade root towards the outer edge.
2. The wind rotor of claim 1, wherein the number of the turbulence grooves is at least two, and the at least two turbulence grooves are sequentially spaced along the direction of the blade root toward the outer edge.
3. The wind rotor of claim 2, wherein the turbulence groove of the at least two turbulence grooves that is furthest away from the hub is a target turbulence groove, and a distance L between an end of the target turbulence groove near the leading edge and the hub is1Radius R of the hub0And the radius R of the wind wheel1Has the following relationship:
0.25(R1-R0)≤L1≤0.5(R1-R0)。
4. the wind rotor of claim 2, wherein the turbulence groove of the at least two turbulence grooves that is furthest away from the hub is a target turbulence groove, and a distance L between an end of the target turbulence groove near the trailing edge and the hub is2Radius R of the hub0And the radius R of the wind wheel1Has the following relationship:
0.1(R1-R0)≤L2≤0.2(R1-R0)。
5. wind turbine according to claim 2, characterized in that the width L of the turbulence grooves3The distance L between the adjacent turbulent flow grooves4Has the following relationship:
L3≤L4≤1.8L3。
6. the wind rotor of any of claims 1 to 5, wherein the distance between the end of the spoiler groove near the leading edge and the hub is a first distance, the distance between the end of the spoiler groove near the trailing edge and the hub is a second distance, and the first distance is greater than the second distance.
7. The wind rotor according to any of claims 1-5, characterized in that the spoiler grooves are arranged close to the blade root on the pressure surface.
8. The wind wheel according to any of claims 1-5, characterized in that the width of the turbulence grooves ranges from 3mm to 6 mm.
9. Wind turbine according to any of claims 1 to 5,
the blades are also provided with a suction surface, the suction surface is arranged opposite to the pressure surface, and the bottom surface of the turbulent flow groove is closer to the suction surface relative to the pressure surface; or
The wind wheel comprises at least two turbulence ribs, the at least two turbulence ribs are convexly arranged on the pressure surface and are adjacent to each other, and the turbulence grooves are formed between the turbulence ribs.
10. A wind turbine comprising the wind rotor of any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023086449.4U CN214404098U (en) | 2020-12-18 | 2020-12-18 | Wind wheel and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023086449.4U CN214404098U (en) | 2020-12-18 | 2020-12-18 | Wind wheel and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214404098U true CN214404098U (en) | 2021-10-15 |
Family
ID=78040751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023086449.4U Active CN214404098U (en) | 2020-12-18 | 2020-12-18 | Wind wheel and fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214404098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294265A (en) * | 2021-12-30 | 2022-04-08 | 广东美的白色家电技术创新中心有限公司 | Wind wheel structure and fan |
| CN114754023A (en) * | 2022-03-28 | 2022-07-15 | 约克广州空调冷冻设备有限公司 | Blade, impeller and backward centrifugal fan |
-
2020
- 2020-12-18 CN CN202023086449.4U patent/CN214404098U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294265A (en) * | 2021-12-30 | 2022-04-08 | 广东美的白色家电技术创新中心有限公司 | Wind wheel structure and fan |
| CN114294265B (en) * | 2021-12-30 | 2023-11-03 | 广东美的白色家电技术创新中心有限公司 | Wind wheel structure and fan |
| CN114754023A (en) * | 2022-03-28 | 2022-07-15 | 约克广州空调冷冻设备有限公司 | Blade, impeller and backward centrifugal fan |
| CN114754023B (en) * | 2022-03-28 | 2024-06-07 | 约克广州空调冷冻设备有限公司 | Blade, impeller and backward centrifugal fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3604821B1 (en) | Propeller fan | |
| EP3141760B1 (en) | Axial flow fan, and air conditioner having said axial flow fan | |
| JP6463548B2 (en) | Axial blower and outdoor unit | |
| JP4388992B1 (en) | Propeller fan, fluid feeder and mold | |
| JP5525429B2 (en) | Counter-rotating axial fan | |
| CN214404098U (en) | Wind wheel and fan | |
| KR101321604B1 (en) | Propeller fan, fluid feeder and mold | |
| JP3204521U (en) | fan | |
| US20190316599A1 (en) | Propeller fan | |
| JP2016070089A (en) | fan | |
| EP3553320B1 (en) | Propeller fan | |
| JP2013253525A (en) | Propeller fan | |
| JP4388993B1 (en) | Propeller fan, fluid feeder and mold | |
| KR100663965B1 (en) | Axial flow fan | |
| JP6951428B2 (en) | Centrifugal fan, molding mold and fluid feeder | |
| CN101999044B (en) | Cross flow fan and air conditioner equipped with same | |
| JP7529708B2 (en) | Propeller fans and refrigeration equipment | |
| CN212130847U (en) | Axial flow fan blade, fan assembly and air conditioner thereof | |
| CN211041348U (en) | Air outlet swing blade and air conditioner | |
| CN212155257U (en) | Double-layer fan blade and fan | |
| CN108506246B (en) | Axial flow wind wheel, air conditioner outdoor unit and air conditioner | |
| JP2019019759A (en) | Centrifugal fan impeller and centrifugal fan with centrifugal fan impeller | |
| WO2021017153A1 (en) | Axial-flow fan blade, axial-flow fan, and air conditioner | |
| CN213744137U (en) | Axial fan and dehumidifier with same | |
| CN217842110U (en) | Impeller and centrifugal fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |