CN109099009B - Axial flow wind wheel, air conditioner outdoor unit and air conditioner - Google Patents
Axial flow wind wheel, air conditioner outdoor unit and air conditioner Download PDFInfo
- Publication number
- CN109099009B CN109099009B CN201811244113.0A CN201811244113A CN109099009B CN 109099009 B CN109099009 B CN 109099009B CN 201811244113 A CN201811244113 A CN 201811244113A CN 109099009 B CN109099009 B CN 109099009B
- Authority
- CN
- China
- Prior art keywords
- hub
- axial flow
- flow wind
- wind wheel
- blade
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 50
- 230000013011 mating Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an axial flow wind wheel, an air conditioner outdoor unit and an air conditioner, wherein the axial flow wind wheel comprises: a hub; and a plurality of blades, a plurality of blades are arranged along the circumference direction interval of wheel hub, the profile edge of blade is including leading edge, outer fringe, trailing edge and the blade root that end to end in proper order, and the blade root is connected with wheel hub, and in the direction of rotation of wheel hub, the leading edge is located the front side of trailing edge, in the plane of the central axis of perpendicular to wheel hub, the projected length of the connection curve of blade root and wheel hub is L1, and the projected length of outer fringe is L2, and satisfies: L2/L1 is more than or equal to 3 and less than or equal to 5. According to the axial flow wind wheel, the projected length L1 of the connection curve of the blade root and the hub and the projected length L2 of the outer edge are enabled to be smaller than or equal to 3 and smaller than or equal to L2/L1 and smaller than or equal to 5, so that the connection strength of the blade and the hub can be effectively improved, the weight of the axial flow wind wheel can be reduced, and the cost of the axial flow wind wheel can be reduced. Meanwhile, flow separation of blade roots can be avoided, so that loss of air quantity is reduced, and efficiency of the axial flow wind wheel is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an axial flow wind wheel, an air conditioner outdoor unit and an air conditioner.
Background
In the related art, an axial flow fan blade consists of a hub and blades connected with the hub. If the connection size of the blade and the hub is too short, the connection strength of the blade and the hub is insufficient, the wind wheel is easy to crack after high-speed rotation, and if the connection size of the blade and the hub is too long, the weight and the cost of the blade are increased. Meanwhile, the root of the blade is overlong, so that the flow separation of the root of the blade is easy to cause, loss is caused, and the efficiency of the axial flow fan is reduced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the axial flow wind wheel, which has high connection strength between the blades and the hub and low cost.
The invention also provides an air conditioner outdoor unit which comprises the axial flow wind wheel.
The invention also provides an air conditioner which comprises the air conditioner outdoor unit.
An axial flow wind wheel according to an embodiment of the present invention includes: a hub; and a plurality of blades, a plurality of blades are followed the circumference direction interval arrangement of wheel hub, the profile edge of blade is including leading edge, outer fringe, trailing edge and the blade root that end to end links to each other in proper order, the blade root with wheel hub connects the direction of rotation of wheel hub, the leading edge is located the front side of trailing edge, in the plane of perpendicular to wheel hub's central axis, the blade root with the length of the projection of wheel hub's connection curve is L1, the length of the projection of outer fringe is L2, and satisfies: L2/L1 is more than or equal to 3 and less than or equal to 5.
According to the axial flow wind wheel provided by the embodiment of the invention, the projected length L1 of the connection curve of the blade root and the hub and the projected length L2 of the outer edge are enabled to be less than or equal to 3 and less than or equal to L2/L1 and less than or equal to 5, so that the connection strength of the blade and the hub can be effectively improved, the weight of the axial flow wind wheel can be reduced, and the cost of the axial flow wind wheel can be reduced. Meanwhile, flow separation of blade roots can be avoided, so that loss of air quantity is reduced, and efficiency of the axial flow wind wheel is improved.
According to some embodiments of the invention, the maximum perpendicular distance between the outer rim and the central axis of the hub is Rs, and satisfies: L2/Rs is less than or equal to 1 and less than or equal to 2.
According to some embodiments of the invention, at least one of the two axial end faces of the hub is provided with a reinforcing rib extending in the radial direction of the hub.
In some embodiments of the present invention, when an end face of one axial end of the hub is provided with a plurality of the reinforcing ribs, the reinforcing ribs are divided into a plurality of groups, the plurality of groups of reinforcing ribs are in one-to-one correspondence with the plurality of blades, each group of reinforcing ribs includes the same number of reinforcing ribs, and the plurality of groups of reinforcing ribs are uniformly distributed along a circumferential direction of the hub, and when each group of reinforcing ribs includes a plurality of reinforcing ribs, the plurality of reinforcing ribs within each group are uniformly distributed.
Further, each set of the reinforcing ribs is adjacent to the mating of the leading edge of the respective blade with the hub.
According to some embodiments of the invention, the outer edges of the two axial end surfaces of the hub are respectively provided with a baffle plate parallel to the central axis of the hub, the baffle plates extend into a ring shape along the circumferential direction of the hub, the free end of the baffle plate at one of the two axial end surfaces of the hub is provided with a plurality of notches, the notches are spaced along the circumferential direction of the baffle plate, and the free end of the baffle plate at the other of the two axial end surfaces of the hub is provided with a plurality of convex plates matched with the notches.
In some embodiments of the present invention, a plurality of positioning ribs are arranged on an end face of the hub, where the end face is provided with the notch, the positioning ribs are in one-to-one correspondence with the notches, the positioning ribs are located on the inner sides of the corresponding notches, and the height of the positioning ribs is higher than the lowest point of the notch.
According to some embodiments of the invention, the hub and the blade are integrally injection molded.
The outdoor unit of the air conditioner comprises the axial flow wind wheel.
According to the air conditioner outdoor unit provided by the embodiment of the invention, the projected length L1 of the connection curve of the blade root and the hub and the projected length L2 of the outer edge are enabled to be less than or equal to 3 and less than or equal to L2/L1 and less than or equal to 5, so that the connection strength of the blades and the hub can be effectively improved, the weight of the axial flow wind wheel can be reduced, and the cost of the axial flow wind wheel can be reduced. Meanwhile, flow separation of blade roots can be avoided, so that loss of air quantity is reduced, and efficiency of the axial flow wind wheel is improved.
The air conditioner comprises the air conditioner outdoor unit.
According to the air conditioner provided by the embodiment of the invention, the projected length L1 of the connection curve of the blade root and the hub and the projected length L2 of the outer edge are enabled to be less than or equal to 3 and less than or equal to L2/L1 and less than or equal to 5, so that the connection strength of the blade and the hub can be effectively improved, the weight of the axial flow wind wheel can be reduced, and the cost of the axial flow wind wheel can be reduced. Meanwhile, flow separation of blade roots can be avoided, so that loss of air quantity is reduced, and efficiency of the axial flow wind wheel is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a front view of an axial flow wind turbine according to an embodiment of the present invention;
FIG. 2 is a perspective view of an axial flow wind turbine according to an embodiment of the present invention;
FIG. 3 is another angular perspective view of an axial flow wind turbine according to an embodiment of the present invention;
FIG. 4 is a perspective view of yet another angle of an axial flow wind turbine according to an embodiment of the present invention;
fig. 5 is a perspective view of yet another angle of an axial flow wind turbine according to an embodiment of the present invention.
Reference numerals:
The axial flow wind wheel 100,
Hub 1, reinforcing rib 11, baffle 12, notch 13, convex plate 14, positioning rib 15,
Blade 2, leading edge 21, outer edge 22, trailing edge 23, and root 24.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "length," "thickness," "front," "rear," "inner," "outer," "axial," "radial," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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.
An axial flow wind wheel 100, an air conditioner outdoor unit, and an air conditioner according to an embodiment of the present invention are described below with reference to fig. 1 to 5.
As shown in fig. 1, an axial flow wind turbine 100 according to an embodiment of the present invention includes a hub 1 and a plurality of blades 2.
Specifically, as shown in fig. 1, a plurality of blades 2 are arranged at intervals in the circumferential direction of the hub 1. Preferably, the plurality of blades 2 are uniformly spaced apart in the circumferential direction of the hub 1, and each blade 2 has the same shape, so that the structure of the axial flow wind wheel 100 can be more uniform, and the axial flow wind wheel 100 can be more stably rotated. As shown in fig. 1, the profiled edge of the blade 2 comprises a leading edge 21, an outer edge 22, a trailing edge 23 and a blade root 24, which are connected end to end in sequence, the blade root 24 being connected to the hub 1, the leading edge 21 being located on the front side of the trailing edge 23 in the rotational direction of the hub 1 (w direction as shown in fig. 1).
In a plane perpendicular to the central axis of the hub 1, the projected length of the connection curve of the blade root 24 with the hub 1 is L1, the projected length of the outer edge 22 is L2, and it is satisfied that: L2/L1 is more than or equal to 3 and less than or equal to 5. When the projected length L1 of the connection curve of the blade root 24 and the hub 1 and the projected length L2 of the outer edge 22 satisfy 3.ltoreq.L2/L1.ltoreq.5, the connection strength of the blade 2 and the hub 1 can be effectively improved, the weight of the axial flow wind wheel 100 can be reduced, and the cost of the axial flow wind wheel 100 can be reduced. And meanwhile, the flow separation of the blade root 24 can be avoided, so that the loss of air quantity is reduced, and the efficiency of the axial flow wind wheel 100 is improved.
According to the axial flow wind wheel 100 of the embodiment of the invention, the projected length L1 of the connection curve of the blade root 24 and the hub 1 and the projected length L2 of the outer edge 22 are enabled to be 3-L2/L1-5, so that the connection strength of the blade 2 and the hub 1 can be effectively improved, the weight of the axial flow wind wheel 100 can be reduced, and the cost of the axial flow wind wheel 100 can be reduced. And meanwhile, the flow separation of the blade root 24 can be avoided, so that the loss of air quantity is reduced, and the efficiency of the axial flow wind wheel 100 is improved.
In some embodiments of the present invention, as shown in FIG. 1, the maximum vertical distance between the outer rim 22 and the central axis of the hub 1 is Rs, and satisfies: L2/Rs is less than or equal to 1 and less than or equal to 2. Thereby, the projection length of the outer edge 22 can be prevented from being too large, thereby avoiding the outer edge 22 from being too long, reducing the volume and weight of the blade 2 and saving the raw material cost of the blade 2. And at the same time, the power of the motor connected with the axial flow wind wheel 100 can be reduced, and the efficiency can be improved.
In some embodiments of the present invention, as shown in fig. 1 to 5, at least one of the axial end surfaces of the hub 1 is provided with a reinforcing rib 11 extending in the radial direction of the hub 1. Therefore, the structural strength of the axial flow wind wheel 100 can be enhanced, the size of other structures on the axial flow wind wheel 100 can be reduced, or other parts or parts of other parts can be correspondingly removed, so that the weight of the axial flow wind wheel 100 is reduced, the power of a motor is reduced, and the efficiency is improved. In addition, the cost of raw materials can be reduced.
For example, in the example shown in fig. 3 and 4, the reinforcing ribs 11 extending in the radial direction thereof are provided on both axial end surfaces of the hub 1, and the reinforcing ribs 11 are plural, and the plural reinforcing ribs 11 are spaced apart in the circumferential direction of the hub 1.
Further, as shown in fig. 1, when the end face of one axial end of the hub 1 is provided with a plurality of reinforcing ribs 11, the reinforcing ribs 11 are divided into a plurality of groups, the plurality of groups of reinforcing ribs 11 are in one-to-one correspondence with the plurality of blades 2, each group of reinforcing ribs 11 includes the same number of reinforcing ribs 11, and the plurality of groups of reinforcing ribs 11 are uniformly distributed along the circumferential direction of the hub 1, and when each group of reinforcing ribs 11 includes the plurality of reinforcing ribs 11, the plurality of reinforcing ribs 11 in each group are uniformly distributed. It will be appreciated that the corresponding plurality of reinforcing ribs 11 in each set of reinforcing ribs 11 are evenly distributed along the circumferential direction of the hub 1. Thereby, the structure of the axial flow wind wheel 100 can be more uniform, and the axial flow wind wheel 100 rotates more stably.
Optionally, each set of reinforcing bars 11 comprises a number N of reinforcing bars 11, said N satisfying: n is more than or equal to 1 and less than or equal to 5. Therefore, the structure of the axial flow wind wheel 100 can be enhanced, the structure of the axial flow wind wheel 100 can be simplified, the weight of the axial flow wind wheel 100 can be reduced, the power of a motor can be reduced, and the efficiency can be improved. For example, in the example shown in fig. 1, the axial flow wind wheel 100 includes three blades 2, and three sets of reinforcing ribs 11 are provided on both axial end surfaces of the hub 1, and each set of reinforcing ribs 11 includes one reinforcing rib 11.
Further, as shown in fig. 1, each set of reinforcing ribs 11 is located close to the mating of the leading edge 21 of the respective blade 2 with the hub 1. Because the front edges 21 of the blades 2 are stressed most during the rotation of the axial-flow wind wheel 100, the blades are most easily damaged during high-speed rotation, and each group of reinforcing ribs 11 is close to the matching position of the front edges 21 of the corresponding blades 2 and the hub 1, the structural strength of the blades 2 can be increased, the damage probability of the blades 2 is reduced, and the service life of the axial-flow wind wheel 100 is prolonged.
In some embodiments of the present invention, as shown in fig. 2 to 5, baffles 12 parallel to the central axis of the hub 1 are provided at outer edges of both axial end surfaces of the hub 1, the baffles 12 extending in a ring shape in the circumferential direction of the hub 1. The free end of the baffle plate 12 at one of the axial ends of the hub 1 is provided with a plurality of notches 13, the plurality of notches 13 being spaced apart in the circumferential direction of the baffle plate 12, each notch 13 being close to an edge of the baffle plate 12 and having an opening on the corresponding edge, each notch 13 penetrating the baffle plate 12 in the thickness direction of the baffle plate 12. The free end of the baffle plate 12 at the other of the two axial ends of the hub 1 is provided with a plurality of convex plates 14 matched with the notches 13, and the convex plates 14 protrude from the free end surface of the baffle plate 12.
Therefore, in the process of storing and transporting the plurality of axial flow wind wheels 100, the plurality of axial flow wind wheels 100 can be stacked along the axial direction, the convex plate 14 of one of the two adjacent axial flow wind wheels 100 stretches into the notch 13 of the other axial flow wind wheel, the stacking height of the plurality of axial flow wind wheels 100 can be relatively reduced, and the two adjacent axial flow wind wheels 100 can be prevented from relatively rotating, so that the storage and the transportation are convenient.
Further, as shown in fig. 2-5, the end face of the hub 1at one end provided with the notch 13 is provided with a plurality of positioning ribs 15, the positioning ribs 15 are in one-to-one correspondence with the notches 13, the positioning ribs 15 are located at the inner sides of the corresponding notches 13, and the height of the positioning ribs 15 is higher than the lowest point of the notch 13. When a plurality of axial-flow wind wheels 100 are stacked, and the convex plate 14 of one of the two adjacent axial-flow wind wheels 100 is positioned in the notch 13 of the other, the positioning ribs 15 can prevent the convex plate 14 and the notch 13 from relatively moving along the radial direction of the hub 1, so that the storage and the transportation are convenient.
In some embodiments of the invention, the hub 1 and the blades 2 are injection molded as one piece. This simplifies the assembly process between the hub 1 and the blade 2 and improves the assembly efficiency.
Alternatively, the outer edges 22 of the blades 2 of the axial flow wind turbine 100 may be a continuous curve. Of course, the outer edge 22 of the blade 2 of the axial flow wind wheel 100 may also be a discontinuous curve, such as a local step-type fold line, saw teeth, trapezoid, wave shape, etc.
1-5, It should be appreciated that the following description is exemplary only and is intended to illustrate the present invention and not to be construed as limiting the invention.
As shown in fig. 1, an axial flow wind wheel 100 according to an embodiment of the present invention includes a hub 1 and three blades 2, wherein the hub 1 and the three blades 2 are integrally injection-molded.
As shown in fig. 1, three blades 2 are uniformly spaced in the circumferential direction of the hub 1, and each blade 2 has the same shape. The profiled edge of each blade 2 comprises a leading edge 21, an outer edge 22, a trailing edge 23 and a blade root 24, which are connected end to end in sequence, the blade root 24 being connected to the hub 1, the leading edge 21 being located on the front side of the trailing edge 23 in the rotational direction of the hub 1 (w direction as shown in fig. 1).
In a plane perpendicular to the central axis of the hub 1, the projected length of the connection curve of the blade root 24 with the hub 1 is L1, the projected length of the outer edge 22 is L2, and it is satisfied that: L2/L1 is more than or equal to 3 and less than or equal to 5. When the projected length L1 of the connection curve of the blade root 24 and the hub 1 and the projected length L2 of the outer edge 22 satisfy 3.ltoreq.L2/L1.ltoreq.5, the connection strength of the blade 2 and the hub 1 can be effectively improved, the weight of the axial flow wind wheel 100 can be reduced, and the cost of the axial flow wind wheel 100 can be reduced. And meanwhile, the flow separation of the blade root 24 can be avoided, so that the loss of the blade is reduced, and the efficiency of the axial flow wind wheel 100 is improved.
Meanwhile, the maximum vertical distance between the outer rim 22 and the central axis of the hub 1 is Rs, and satisfies: L2/Rs is less than or equal to 1 and less than or equal to 2. Thereby, the projection length of the outer edge 22 can be prevented from being too large, thereby avoiding the outer edge 22 from being too long, reducing the volume and weight of the blade 2 and saving the raw material cost of the blade 2. And at the same time, the power of the motor connected with the axial flow wind wheel 100 can be reduced, and the efficiency can be improved.
As shown in fig. 2-5, three sets of reinforcing ribs 11 are disposed on two axial end faces of the hub 1, each set of reinforcing ribs 11 includes one reinforcing rib 11, each reinforcing rib 11 extends along a radial direction of the hub 1, and each set of reinforcing ribs 11 is close to a mating position of the front edge 21 of the corresponding blade 2 and the hub 1. Because the front edges 21 of the blades 2 are stressed most during the rotation of the axial-flow wind wheel 100, the blades are most easily damaged during high-speed rotation, and each group of reinforcing ribs 11 is close to the matching position of the front edges 21 of the corresponding blades 2 and the hub 1, the structural strength of the blades 2 can be increased, the damage probability of the blades 2 is reduced, and the service life of the axial-flow wind wheel 100 is prolonged.
As shown in fig. 2-5, two side surfaces of the blade 2 are a pressure surface and a suction surface, respectively, the outer edges of the two axial end surfaces of the hub 1 are both provided with baffles 12 parallel to the central axis of the hub 1, and the baffles 12 extend into a ring shape along the circumferential direction of the hub 1. The free end of the baffle plate 12 on the pressure surface side of the hub 1 is provided with three notches 13, the three notches 13 being spaced apart in the circumferential direction of the baffle plate 12, each notch 13 being close to the edge of the baffle plate 12 and having an opening on the corresponding edge, each notch 13 penetrating the baffle plate 12 in the thickness direction of the baffle plate 12. The free end of the baffle 12 on the suction side of the hub 1 is provided with a plurality of convex plates 14 matched with the notches 13, and the convex plates 14 protrude from the free end surface of the baffle 12. Wherein the notches 13 and relief are each located near the mating of the trailing edge 23 of the blade 2 with the hub 1 and spaced apart from the stiffener 11.
Therefore, in the process of storing and transporting the plurality of axial flow wind wheels 100, the plurality of axial flow wind wheels 100 can be stacked along the axial direction, the convex plate 14 of one of the two adjacent axial flow wind wheels 100 stretches into the notch 13 of the other axial flow wind wheel, the stacking height of the plurality of axial flow wind wheels 100 can be relatively reduced, and the two adjacent axial flow wind wheels 100 can be prevented from relatively rotating, so that the storage and the transportation are convenient.
Further, as shown in fig. 2-5, the end face of the end, provided with the notch 13, of the hub 1 is provided with three positioning ribs 15, the three positioning ribs 15 are in one-to-one correspondence with the three notches 13, the positioning ribs 15 are located on the inner sides of the corresponding notches 13, and the height of the positioning ribs 15 is higher than the lowest point of the notch 13. When a plurality of axial-flow wind wheels 100 are stacked, and the convex plate 14 of one of the two adjacent axial-flow wind wheels 100 is positioned in the notch 13 of the other, the positioning ribs 15 can prevent the convex plate 14 and the notch 13 from relatively moving along the radial direction of the hub 1, so that the storage and the transportation are convenient.
An outdoor unit of an air conditioner according to an embodiment of the present invention includes the axial flow wind wheel 100 described above.
According to the air conditioner outdoor unit provided by the embodiment of the invention, the projected length L1 of the connection curve of the blade root 24 and the hub 1 and the projected length L2 of the outer edge 22 are enabled to be 3-L2/L1-5, so that the connection strength of the blade 2 and the hub 1 can be effectively improved, the weight of the axial flow wind wheel 100 can be reduced, and the cost of the axial flow wind wheel 100 can be reduced. And meanwhile, the flow separation of the blade root 24 can be avoided, so that the loss of the blade is reduced, and the efficiency of the axial flow wind wheel 100 is improved.
The air conditioner comprises the air conditioner outdoor unit.
According to the air conditioner provided by the embodiment of the invention, the projected length L1 of the connection curve of the blade root 24 and the hub 1 and the projected length L2 of the outer edge 22 are enabled to be 3-L2/L1-5, so that the connection strength of the blade 2 and the hub 1 can be effectively improved, the weight of the axial flow wind wheel 100 can be reduced, and the cost of the axial flow wind wheel 100 can be reduced. And meanwhile, the flow separation of the blade root 24 can be avoided, so that the loss of the blade is reduced, and the efficiency of the axial flow wind wheel 100 is improved.
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.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. An axial flow wind wheel for an air conditioner outdoor unit, comprising:
A hub; and
The blade profile edge of the blade comprises a front edge, an outer edge, a tail edge and a blade root which are connected end to end in sequence, the blade root is connected with the hub, the front edge is positioned on the front side of the tail edge in the rotating direction of the hub, the length of the projection of the connection curve of the blade root and the hub is L1 in a plane perpendicular to the central axis of the hub, the length of the projection of the outer edge is L2, and the requirements are met: 3.ltoreq.L2/L1.ltoreq.5, the maximum vertical distance between the outer rim and the central axis of the hub being Rs, and satisfying: 1 is less than or equal to L2/Rs is less than or equal to 2, the outer edges of the two axial end surfaces of the hub are respectively provided with a baffle plate parallel to the central axis of the hub, the baffles extend into a ring shape along the circumferential direction of the hub, the free end of the baffle plate at one of the two axial end surfaces of the hub is provided with a plurality of notches, the notches are spaced along the circumferential direction of the baffle plate, and the free end of the baffle plate at the other one of the two axial end surfaces of the hub is provided with a plurality of convex plates matched with the notches.
2. The axial flow wind wheel according to claim 1, wherein at least one of the axial end surfaces of the hub is provided with a reinforcing rib extending in a radial direction of the hub.
3. The axial flow wind wheel according to claim 2, wherein when an end face of an axial end of the hub is provided with a plurality of the reinforcing ribs, the reinforcing ribs are divided into a plurality of groups, the plurality of groups of reinforcing ribs are in one-to-one correspondence with the plurality of blades, each group of reinforcing ribs includes the same number of reinforcing ribs, and the plurality of groups of reinforcing ribs are uniformly distributed in a circumferential direction of the hub, and when each group of reinforcing ribs includes a plurality of reinforcing ribs, the plurality of reinforcing ribs in each group are uniformly distributed.
4. An axial flow wind wheel according to claim 3, wherein each set of said ribs is adjacent the mating of the leading edge of the respective blade with the hub.
5. The axial flow wind wheel according to claim 1, wherein a plurality of positioning ribs are arranged on an end face of one end of the hub, which is provided with the notch, the positioning ribs are in one-to-one correspondence with the notches, the positioning ribs are positioned on the inner sides of the corresponding notches, and the height of the positioning ribs is higher than the lowest point of the notch.
6. The axial flow wind wheel of claim 1, wherein the hub is an integrally injection molded piece with the blades.
7. An air conditioner outdoor unit comprising the axial flow wind wheel according to any one of claims 1 to 6.
8. An air conditioner comprising the air conditioner outdoor unit according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811244113.0A CN109099009B (en) | 2018-10-24 | 2018-10-24 | Axial flow wind wheel, air conditioner outdoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811244113.0A CN109099009B (en) | 2018-10-24 | 2018-10-24 | Axial flow wind wheel, air conditioner outdoor unit and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109099009A CN109099009A (en) | 2018-12-28 |
| CN109099009B true CN109099009B (en) | 2024-05-28 |
Family
ID=64869345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811244113.0A Active CN109099009B (en) | 2018-10-24 | 2018-10-24 | Axial flow wind wheel, air conditioner outdoor unit and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099009B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469644B (en) * | 2018-12-29 | 2020-07-31 | 宁波朗迪叶轮机械有限公司 | Axial flow fan blade |
| CN111075761A (en) * | 2020-01-13 | 2020-04-28 | 宁波奥克斯电气股份有限公司 | Axial flow fan blade and air conditioner |
| CN111894899B (en) * | 2020-08-26 | 2021-07-13 | 珠海格力电器股份有限公司 | Fan blade, fan blade impeller, fan assembly and air conditioning equipment |
| JP7502645B2 (en) | 2021-01-21 | 2024-06-19 | ダイキン工業株式会社 | Axial flow fan and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835992A (en) * | 2014-02-24 | 2014-06-04 | 广东美的厨房电器制造有限公司 | Fan blade capable of blowing air in diffused mode and fan blade support |
| CN106286389A (en) * | 2016-09-23 | 2017-01-04 | 广东顺威精密塑料股份有限公司 | A kind of can the fixing axial-flow leaf of tow sides superposition |
| CN207740239U (en) * | 2018-01-09 | 2018-08-17 | 奥克斯空调股份有限公司 | A kind of axial-flow leaf and air conditioner |
| CN208918907U (en) * | 2018-10-24 | 2019-05-31 | 美的集团股份有限公司 | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner |
-
2018
- 2018-10-24 CN CN201811244113.0A patent/CN109099009B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835992A (en) * | 2014-02-24 | 2014-06-04 | 广东美的厨房电器制造有限公司 | Fan blade capable of blowing air in diffused mode and fan blade support |
| CN106286389A (en) * | 2016-09-23 | 2017-01-04 | 广东顺威精密塑料股份有限公司 | A kind of can the fixing axial-flow leaf of tow sides superposition |
| CN207740239U (en) * | 2018-01-09 | 2018-08-17 | 奥克斯空调股份有限公司 | A kind of axial-flow leaf and air conditioner |
| CN208918907U (en) * | 2018-10-24 | 2019-05-31 | 美的集团股份有限公司 | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109099009A (en) | 2018-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109099009B (en) | Axial flow wind wheel, air conditioner outdoor unit and air conditioner | |
| CN201241864Y (en) | Wind impeller for fan | |
| EP1485624B1 (en) | Engine-cooling fan assembly with overlapping fans | |
| CN107975494B (en) | Axial flow wind wheel and air conditioner | |
| US11680580B2 (en) | Axial-flow impeller and air-conditioner having the same | |
| CN208918913U (en) | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner | |
| CN208918907U (en) | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner | |
| EP2539591B1 (en) | Free-tipped axial fan assembly | |
| CN103486083A (en) | Fan blade wheel | |
| CN103185029A (en) | Centrifugal fan vane | |
| CN106766045B (en) | Air supply assembly and air conditioner | |
| KR101817956B1 (en) | Impeller for a blower | |
| CN103185030A (en) | Oblique-flow centrifugal impeller for air conditioner | |
| CN109340181A (en) | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner | |
| CN102966594A (en) | Centrifugal fan, centrifugal blower and air-cooling type refrigeration equipment | |
| CN109209996A (en) | Axial-flow windwheel, wind wheel component, air-conditioner outdoor unit and air conditioner | |
| CN111894876A (en) | Fan and dust collector with same | |
| CN215762421U (en) | Centrifugal fan blade, fan and air conditioning system comprising same | |
| CN109026765A (en) | Impeller, centrifugal blower and range hood for centrifugal blower | |
| CN208918914U (en) | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner | |
| CN209430482U (en) | A kind of axial-flow leaf | |
| CN210686426U (en) | Axial flow wind wheel and air conditioner with same | |
| CN203685684U (en) | Fan blade wheel of fan | |
| CN109707644B (en) | Axial flow motor and air treatment device with same | |
| CN209586721U (en) | Axial flow blower and air processor with it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |