CN217107548U - Axial flow impeller and fan - Google Patents
Axial flow impeller and fan Download PDFInfo
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- CN217107548U CN217107548U CN202121394896.8U CN202121394896U CN217107548U CN 217107548 U CN217107548 U CN 217107548U CN 202121394896 U CN202121394896 U CN 202121394896U CN 217107548 U CN217107548 U CN 217107548U
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Abstract
The application provides axial impeller and fan, through improving the blade structure, can effectively enlarge the air supply scope, promotes the comfort level. The axial flow impeller comprises a hub and a plurality of blades, the blades are arranged on the outer wall of the hub at intervals along the outer circumferential direction of the hub, the blade root parts of the blades are connected with the outer wall of the hub, and the blade tip parts of the blades are far away from the hub; every the blade includes first blade and second blade, and a side of first blade is connected with the adjacent side of second blade, another side of first blade keep away from with the adjacent side of second blade, form first blade with contained angle structure between the second blade, the opening orientation of contained angle with wheel hub's direction of rotation is unanimous.
Description
Technical Field
The utility model relates to a fan field, in particular to axial impeller and have this axial impeller's fan.
Background
The impeller structure of the existing fan is mainly an axial flow impeller, the conventional axial flow impeller is simple in structure, and referring to fig. 1, the impeller comprises a hub 100a and a plurality of blades 100b, the blades 100b in the conventional axial flow impeller are of a single-blade structure, so that the air outlet mode of the conventional axial flow impeller is cylindrical air outlet, namely, the air outlet range is a circle formed by taking the axis of the hub 100a as the center of a circle and taking the distance from the axis to the edge of the blade 100b as the radius, the influence range is small, the air outlet range can only reach the edge of the blade 100b, the air outlet range cannot be expanded, and the air supply range is limited.
SUMMERY OF THE UTILITY MODEL
For solving the less problem of current axial impeller air-out influence scope, the utility model aims to provide an axial impeller and fan, axial impeller improves the design to blade structure, can effectively enlarge air supply scope, promotes the comfort level.
Specifically, the utility model discloses a technical scheme do:
an axial flow impeller comprising: a hub; the blades are arranged on the outer wall of the hub at intervals along the outer circumference of the hub, the blade root parts of the blades are connected with the outer wall of the hub, and the blade tip parts of the blades are far away from the hub; every the blade includes first blade and second blade, a side of first blade with the adjacent side of second blade is connected, another side of first blade keep away from with the adjacent side of second blade, form first blade with contained angle structure between the second blade, the opening orientation of contained angle with wheel hub's direction of rotation is unanimous.
Optionally, two adjacent side edges of the first blade and the second blade are respectively concave to form at least one concave portion.
Optionally, an included angle between the first blade and the second blade gradually increases from the blade root to the blade tip.
Optionally, the side of the first blade corresponding to the opening end of the included angle is bent towards the direction of the second blade by being close to one end of the root of the blade, and then bent towards being close to the direction of the second blade, so as to form a bent structure corresponding to the side of the first blade corresponding to the opening end of the included angle.
Optionally, the width of the second blade gradually decreases from one end corresponding to the root portion to one end corresponding to the tip portion; the side edge of the second blade corresponding to the opening end of the included angle is arc-shaped.
Optionally, an upper concave arc is arranged at one end of the first blade corresponding to the blade root, and the radian of the upper concave arc corresponds to that of the outer wall of the hub; and one end of the second blade, which corresponds to the blade root, is provided with a downward concave arc, and the radian of the downward concave arc corresponds to that of the outer wall of the hub.
Optionally, the second blade close to the blade root is bent in a direction away from the first blade to form a bent portion, a bending angle exists between a plane where the bent portion is located and the rotation plane of the hub, and the range of the bending angle is 0-60 °.
Optionally, the middle part of the surface of the second blade between the bending part and the tip part protrudes towards the direction of the first blade to form an arc-shaped convex edge.
Optionally, the surface area of the second blade is smaller than the surface area of the first blade.
The utility model also provides a fan, this fan can realize big diffusion angle air-out, enlarges the air supply scope.
To achieve the above object, the present invention provides a fan including an axial flow impeller as described above.
The beneficial effects of the utility model reside in that:
the utility model provides an axial impeller improves blade structure, and the blade structure after the improvement includes first blade and second blade, has the contained angle between first blade and the second blade, and the opening orientation of contained angle is unanimous with wheel hub direction of rotation to form contained angle open-ended windward setting, from this, axial impeller is rotatory in-process, and the wind that produces is through the petiole portion of blade after the open end of contained angle insufflates between first blade and the second blade to spread, thereby enlarges the angle of play wind, enlarges the influence scope of fan; the axial flow impeller may be used for electric products having a fan function, such as floor fans, table fans, ceiling fans, fan lamps, and the like.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a structural view of a conventional axial-flow impeller;
fig. 2 is an overall structural view of an axial flow impeller according to an exemplary embodiment of the present invention;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a bottom view of FIG. 2;
FIG. 5 is a schematic structural view of a single blade in an axial flow impeller;
FIG. 6 is a schematic structural view of a blade in an axial flow impeller in accordance with an exemplary embodiment of the present invention;
FIG. 7 is a schematic structural view of a blade in an axial flow impeller in accordance with an exemplary embodiment of the present invention;
FIG. 8 is a schematic structural view of a blade in an axial flow impeller in accordance with an exemplary embodiment of the present invention;
FIG. 9 is a schematic structural view of a blade in an axial flow impeller in accordance with an exemplary embodiment of the present invention;
the direction of the arrow in fig. 2 is the direction of hub rotation;
the parts in the figure are numbered as follows:
100a, hub, 100b, blade;
100. a hub;
200. blade, 201, blade root, 202, tip, 210, first blade, 211, boss, 212, concave arc, 220, second blade, 221, bend, 222, ridge, 223, concave arc, 230, recess.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The axial flow impeller is characterized in that the blade structure is improved, an included angle exists between the first blade and the second blade, and the included angle is formed in the windward setting of the included angle opening, so that the wind outlet angle is enlarged, and the influence range of the fan is enlarged. As a typical application, the axial-flow impeller may be applied to a fan having a fan function, for example, a floor fan, a table fan, a ceiling fan, a fan lamp, and the like. Particularly, the fan using the axial-flow impeller of the present embodiment can sufficiently exert its advantages in the fan requiring the air blowing range.
As shown in fig. 2 to 9, in an embodiment of the present invention, the axial flow impeller includes a hub 100 and a plurality of blades 200. A plurality of blades 200 are arranged on the outer wall of the hub 100 at intervals along the outer circumference of the hub 100, blade root portions 201 of the blades 200 are connected with the outer wall of the hub 200, and blade tip portions 202 of the blades 200 are far away from the hub 100; every blade 200 includes first blade 210 and second blade 220, a side of first blade 210 with the adjacent side of second blade 220 is connected, another side of first blade 210 keep away from with the adjacent side of second blade 220 forms first blade 210 with the contained angle structure between the second blade 220, the opening orientation of contained angle is unanimous with wheel hub 100 direction of rotation.
In this embodiment, the structure of the blade 200 is improved, the blade 200 is composed of a first blade 210 and a second blade 220, an included angle exists between the first blade 210 and the second blade 220, and the opening direction of the included angle is consistent with the rotation direction of the hub 100, so as to form an windward structure with the included angle opening, and the structural design of the windward opening enables the generated wind to be blown into the space between the first blade 210 and the second blade 220 through the opening end of the included angle and then to be diffused through the blade tip part 202 of the blade 200 in the rotation process of the axial flow impeller, so that the wind outlet angle is enlarged, and the influence range (air supply range) of the fan is enlarged.
The first blade 210 is located above, the first blade 210 is a main blade, the second blade 220 is located below, and the second blade 220 is a backflow blade. The number of the blades 200 is multiple, and the number of the blades 200 can be adjusted according to actual use requirements.
Referring to fig. 7, in an embodiment of the present invention, the adjacent two sides of the first blade 210 and the second blade 220 are respectively concave to form at least one concave portion 230. In the present embodiment, referring to fig. 2 and 7, the concave direction of the concave portion 230 is the same as the rotation direction of the hub 100. The design of the recess 230 can ensure the connection strength between the first blade 210 and the second blade 220, thereby improving the overall strength of the blade 200.
Referring to fig. 6 to 8, in an embodiment of the present invention, the first electrode is a first electrodeThe included angle between the blade 210 and the second blade 220 gradually increases from the root 201 to the tip 202; in the illustrated embodiment, the angle between the first blade 210 and the second blade 220 corresponding to the blade root 201 is α 1 The included angle between the first blade 210 and the second blade 220 corresponding to the tip portion 202 is α 2 ，α 2 And alpha 1 The difference between them is 30 °. The included angle between first blade 210 and the second blade 220 presents the trend of crescent by root of leaf 201 to tip 202 direction, can form loudspeaker-like public address function, promptly for the wind that gets into in the included angle, in the removal in-process to tip 202, can be because the open-ended crescent of included angle, wind-force becomes strong gradually, thereby increase air supply wind-force, enlarge air supply scope. Specifically, in the present embodiment, α 2 Is 60 DEG, alpha 1 30 deg., and the difference between the two is 30 deg..
Referring to fig. 6 and 8, in an embodiment of the present invention, the side of the first blade 210 corresponding to the opening end of the included angle is bent from the end close to the blade root 201 to the direction away from the second blade 220, and then bent to the direction close to the second blade 220, so as to form a bent structure corresponding to the side of the first blade 210 corresponding to the opening end of the included angle. In the illustrated embodiment, the side of the first blade 210 corresponding to the opening end of the included angle is bent upward (i.e. away from the second blade 220) from the end close to the blade root 201, and then bent downward (i.e. close to the second blade 220) to form an arc-shaped bent structure of the side, so as to form an arc-shaped protrusion 211 on the first blade 210. The design of the convex part 211 can wrap and gather the wind entering the included angle, thereby increasing the wind quantity to a certain extent. In addition, due to the design of the bending structure, the surface of the first blade 210 undulates with the bending structure.
In another embodiment, the bending structure of the side edge may be a trapezoidal bending structure, a wave-shaped multi-segment bending structure, or the like.
Referring to fig. 9, in an embodiment of the present invention, the second blade 220 near the blade root 201 is bent to a direction away from the first blade 210 to form a bent portion 221, and a bending angle (not shown) exists between a plane of the bent portion 221 and a rotation plane of the hub 100, and the bending angle ranges from 0 ° to 60 °. The design of the bending portion 221 can guide the wind entering the included angle to transmit the wind to the tip portion 202.
Further, referring to fig. 6 and 9, the middle of the surface of the second blade 220 between the bending part 221 and the tip part 202 protrudes toward the first blade 210 to form an arc-shaped rib 222. The design of the rib 222 can cooperate with the bending portion 221 to form a curve for the wind transmitted to the tip portion 202, thereby increasing the blowing force.
Referring to fig. 6 to 9, the width of the second blade 220 gradually decreases from the end corresponding to the root portion 201 to the end corresponding to the tip portion 202; the side of the second blade 220 corresponding to the open end of the included angle is arc-shaped. The width of the second blade 220 gradually decreases from one end of the blade root 201 to one end of the blade tip 201, forming a shark fin-like shape of the second blade 220 to reduce wind resistance. Second blade 220 can promote second blade 220's streamlined structure towards the structural design of the arc side of open end, reduces the windage to further promote the soft degree of air-out.
Referring to fig. 6, 7 and 9, an upper concave arc 212 is arranged at one end of the first blade 210 corresponding to the blade root 201, and the radian of the upper concave arc 212 corresponds to the radian of the outer wall of the hub 100; one end of the second blade 220, corresponding to the blade root 201, is provided with a downward concave arc 223, and the radian of the downward concave arc 223 corresponds to the radian of the outer wall of the hub 100. The design of the upper concave arc 212 can ensure the tight fit between the first blade 210 and the outer wall of the hub 100, and ensure the connection stability; the design of the concave arc 223 can ensure the close fit between the second blade 220 and the outer wall of the hub 100, and ensure the connection stability.
The surface area of the second blade is smaller than that of the first blade, so that the air outlet area of the air outlet end (the end close to the tip part 202) of the blade 200 can be increased, the air outlet quantity is increased, and the air supply range is expanded.
The utility model also provides a fan, the fan includes as before axial compressor impeller.
The axial flow impeller may be used for electric products having a fan function, such as a floor fan, a table fan, a ceiling fan, a fan lamp, and the like.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. An axial flow impeller, comprising:
a hub;
the blades are arranged on the outer wall of the hub at intervals along the outer circumference of the hub, the blade root parts of the blades are connected with the outer wall of the hub, and the blade tip parts of the blades are far away from the hub;
every the blade includes first blade and second blade, a side of first blade with the adjacent side of second blade is connected, another side of first blade keep away from with the adjacent side of second blade, form first blade with contained angle structure between the second blade, the opening orientation of contained angle with wheel hub's direction of rotation is unanimous.
2. The axial-flow impeller according to claim 1, wherein adjacent two sides of the first blade and the second blade are respectively recessed to form at least one recess.
3. The axial flow impeller according to claim 1, wherein an angle between said first blade and said second blade is gradually increased from a blade root portion to a blade tip portion.
4. The axial-flow impeller according to claim 3, wherein the side of the first blade corresponding to the open end of the included angle is bent from the end near the root of the blade to the direction away from the second blade, and then bent to the direction near the second blade, so as to form a bent structure of the side of the first blade corresponding to the open end of the included angle.
5. The axial-flow impeller according to claim 3, wherein the width of said second blade is gradually reduced from the end corresponding to said root portion to the end corresponding to said tip portion; the side edge of the second blade corresponding to the opening end of the included angle is arc-shaped.
6. The axial-flow impeller as recited in claim 1, wherein an end of the first blade corresponding to the root portion is provided with an upwardly concave arc having an arc corresponding to an arc of the outer wall of the hub; and one end of the second blade, which corresponds to the blade root, is provided with a downward concave arc, and the radian of the downward concave arc corresponds to that of the outer wall of the hub.
7. The axial-flow impeller according to claim 1, wherein the second blade near the blade root is bent away from the first blade to form a bent portion, and a bent angle exists between a plane of the bent portion and a rotation plane of the hub, and the bent angle ranges from 0 ° to 60 °.
8. The axial-flow impeller according to claim 7, wherein said second blade between said bent portion and said tip portion is convex toward said first blade to form an arc-shaped convex rib.
9. The axial flow impeller of claim 6, wherein the second blades have a surface area smaller than the surface area of the first blades.
10. A fan, characterized in that it comprises an axial-flow impeller according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121394896.8U CN217107548U (en) | 2021-06-22 | 2021-06-22 | Axial flow impeller and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121394896.8U CN217107548U (en) | 2021-06-22 | 2021-06-22 | Axial flow impeller and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217107548U true CN217107548U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121394896.8U Active CN217107548U (en) | 2021-06-22 | 2021-06-22 | Axial flow impeller and fan |
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| Country | Link |
|---|---|
| CN (1) | CN217107548U (en) |
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2021
- 2021-06-22 CN CN202121394896.8U patent/CN217107548U/en active Active
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