CN115217791A - Axial flow fan blade and air conditioner - Google Patents
Axial flow fan blade and air conditioner Download PDFInfo
- Publication number
- CN115217791A CN115217791A CN202110405903.8A CN202110405903A CN115217791A CN 115217791 A CN115217791 A CN 115217791A CN 202110405903 A CN202110405903 A CN 202110405903A CN 115217791 A CN115217791 A CN 115217791A
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- inner hub
- fan blade
- flow fan
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- air
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- 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
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- 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
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- 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
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- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an axial flow fan blade and an air conditioner, and relates to the technical field of air conditioners. The axial flow fan blade comprises an inner hub, a wind guide structure and blades. Wind-guiding structure sets up between interior hub and blade, and interior hub passes through wind-guiding structure and blade fixed connection, and wind-guiding structure is used for carrying out the wind-guiding to the air. Compared with the prior art, the axial flow fan blade provided by the invention adopts the air guide structure fixedly connected between the inner hub and the blade, so that the diameter of the inner hub can be reduced under the condition of ensuring the connection strength, the air guide effect is improved, the weight of the axial flow fan blade is reduced, the rotation efficiency is improved, and the energy consumption is reduced.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an axial flow fan blade and an air conditioner.
Background
At present, in an air conditioner outdoor unit, a driving motor is generally used for driving an axial flow fan blade to rotate so as to drive air to flow to form heat exchange airflow, and therefore heat exchange is carried out on a condenser. But the blade direct fixed connection of present axial fan blade is on interior hub's global, for guaranteeing joint strength, usually can do greatly interior hub's diameter, but so, interior hub can cause certain influence to the air current that passes the axial fan blade, reduces the wind-guiding effect to can make the weight increase of whole axial fan blade, lead to the rotational efficiency to descend, the energy consumption increase.
Disclosure of Invention
The invention solves the problem of how to reduce the diameter of the inner hub, improve the air guide effect, reduce the weight of the axial flow fan blade, improve the rotating efficiency and reduce the energy consumption under the condition of ensuring the connection strength.
In order to solve the problems, the technical scheme of the invention is realized as follows:
in a first aspect, the invention provides an axial flow fan blade, which comprises an inner hub, a wind guide structure and blades, wherein the wind guide structure is arranged between the inner hub and the blades, the inner hub is fixedly connected with the blades through the wind guide structure, and the wind guide structure is used for guiding air. Compared with the prior art, the axial flow fan blade provided by the invention adopts the air guide structure fixedly connected between the inner hub and the blade, so that the diameter of the inner hub can be reduced under the condition of ensuring the connection strength, the air guide effect is improved, the weight of the axial flow fan blade is reduced, the rotation efficiency is improved, and the energy consumption is reduced.
Further, the air guide structure comprises a main air guide part and an auxiliary air guide part, the main air guide part is fixedly connected with the auxiliary air guide part and is arranged at a preset included angle, the main air guide part and the auxiliary air guide part are fixedly connected to the circumferential surface of the inner hub, and the main air guide part is connected with the blades. The main air guide part and the auxiliary air guide part are used for pressing air from the windward side to the leeward side so as to improve the air guide effect.
Furthermore, the air guide structure also comprises a lifting part, one side of the lifting part is fixedly connected with the main air guide part, the other side of the lifting part is fixedly connected with the blades, and the lifting part is used for lifting the main air guide part so as to enable the blades and the main air guide part to have a height difference. Therefore, the preset included angle between the main air guide part and the auxiliary air guide part is increased, and further the damage of the air guide structure caused by overlarge collected air flow is avoided.
Further, the lifting part is relatively provided with a first end part and a second end part, and the height of the first end part is larger than that of the second end part. The structure shape of the main air guiding part conforms to the air flow science, and the air guiding effect is improved.
Further, the first end portion is located on one side of a preset plane, the second end portion is located on the other side of the preset plane, and the preset plane is a plane perpendicular to the axis of the inner hub and passing through the midpoint of the inner hub. So that the main wind guide surface and the auxiliary wind guide surface can press air from the windward side to the leeward side, thereby improving the wind guide effect.
Furthermore, an included angle between a connecting line of a midpoint of the inner hub and a point of the first end part close to the main air guiding part and the preset plane ranges from 8.5 degrees to 22 degrees.
Further, the included angle between the line connecting the midpoint of the inner hub and the point of the first end close to the blade and the preset plane ranges from 20 degrees to 24 degrees.
Further, the main air guiding part, the second end part and the blades are arranged in a flush mode, and the included angle between the connecting line of the middle point of the inner hub and the second end part and a preset plane ranges from 25 degrees to 32 degrees.
Furthermore, a first endpoint and a second endpoint are arranged opposite to a connecting line of the main air guide part and the inner hub, the first endpoint is arranged on one side, close to the auxiliary air guide part, of the second endpoint, the first endpoint and the second endpoint are both located on one side of a preset plane, and the preset plane is a plane which is perpendicular to an axis of the inner hub and penetrates through the midpoint of the inner hub. So that the main wind guide surface and the auxiliary wind guide surface can press air from the windward side to the leeward side, thereby improving the wind guide effect.
Further, the included angle between the connecting line of the middle point and the first end point of the inner hub and the preset plane ranges from 9 degrees to 18 degrees.
Furthermore, the included angle between the connecting line of the midpoint of the inner hub and the second endpoint and the preset plane ranges from 31 degrees to 36 degrees.
Further, the ratio of the width of the blade in the radial direction of the inner hub to the width of the air guiding structure in the radial direction of the inner hub ranges from 5.4 to 5.8. The reasonable width ratio of the blades to the air guide structure in the radial direction of the inner hub can increase the area of the air guide structure as much as possible under the condition of ensuring the connection strength, thereby improving the air guide effect.
Furthermore, the quantity of wind-guiding structure and blade is a plurality of, a plurality of wind-guiding structure end to end, and all with interior hub fixed connection, interior hub encloses to be located between a plurality of wind-guiding structure, every wind-guiding structure and a blade fixed connection. The air-out effect can be guaranteed to a plurality of blades, and a plurality of wind-guiding structures can further improve the joint strength of blade and interior hub.
In a second aspect, the invention provides an air conditioner, which includes the above axial flow fan blade, where the axial flow fan blade includes an inner hub, a wind guide structure and a blade, the wind guide structure is disposed between the inner hub and the blade, the inner hub is fixedly connected with the blade through the wind guide structure, and the wind guide structure is used for guiding air. The air conditioner can reduce the diameter of the inner hub under the condition of ensuring the connection strength, improve the air guide effect, reduce the weight of the axial flow fan blade, improve the rotation efficiency and reduce the energy consumption.
Drawings
Fig. 1 is an axial view of an axial-flow fan blade according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion II of FIG. 1;
fig. 3 is a top view of an axial-flow fan blade according to a first embodiment of the present invention;
fig. 4 is a front view of the axial-flow fan blade according to the first embodiment of the invention.
Description of the reference numerals:
100-axial flow fan blades; 110-inner hub; 120-air guiding structure; 121-a main wind guide part; 122-secondary air guide; 123-a lifting part; 124-main air guide surface; 125-guiding wind surface; 126-a first end; 127-a second end portion; 130-blade.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
First embodiment
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, an embodiment of the invention provides an axial-flow fan blade 100 for driving air to flow to form an air flow. The diameter of the inner hub 110 can be reduced under the condition of ensuring the connection strength, the air guide effect is improved, the weight of the axial flow fan blade 100 is reduced, the rotation efficiency is improved, and the energy consumption is reduced.
It should be noted that the axial flow fan 100 is applied to an external air conditioner (not shown) which is installed outdoors and includes a condenser (not shown) and a driving motor (not shown), the driving motor is connected to the axial flow fan 100 to drive the axial flow fan 100 to rotate, the axial flow fan 100 drives air to flow while rotating, so as to form a heat exchange airflow, and the heat exchange airflow can exchange heat with the condenser to ensure normal operation of the condenser. But not limited to this, in other embodiments, the axial flow fan 100 may also be applied to an electric fan, and the application scenario of the axial flow fan 100 is not particularly limited.
The axial flow fan blade 100 includes an inner hub 110, a wind guide structure 120, and a blade 130. The air guide structure 120 is disposed between the inner hub 110 and the blade 130, the inner hub 110 is fixedly connected to the blade 130 through the air guide structure 120, the inner hub 110 is used for being connected to a driving motor, the air guide structure 120 can improve the connection strength between the blade 130 and the inner hub 110, and the relative position between the blade 130 and the inner hub 110 is fixed to prevent the blade 130 from being displaced relative to the inner hub 110. When the axial flow fan blade 100 rotates along a preset direction, the axial flow fan blade 100 is provided with a windward side and a leeward side, an airflow generated by the rotation of the axial flow fan blade 100 flows from the windward side to the leeward side, and the air guide structure 120 is used for guiding air so as to press the air to the leeward side, thereby improving the air guide effect.
It is worth noting that, wind-guiding structure 120 combines interior hub 110 and blade 130 fixed connection, and wind-guiding structure 120 can improve the joint strength of blade 130 and interior hub 110 to reduce the diameter of interior hub 110, alleviate the weight of whole axial fan blade 100, make axial fan blade 100 realize the lightweight, improve the rotation efficiency, reduce the energy consumption, wind-guiding structure 120 can also wind the air, press the air to the leeward side from the windward side, improve wind-guiding effect.
It should be noted that, the number of the air guiding structures 120 and the number of the blades 130 are multiple, the multiple air guiding structures 120 are connected end to end and are all fixedly connected to the inner hub 110, the inner hub 110 is enclosed between the multiple air guiding structures 120, each air guiding structure 120 is fixedly connected to one blade 130, the multiple blades 130 can ensure an air outlet effect, and the multiple air guiding structures 120 can further improve the connection strength between the blades 130 and the inner hub 110. In this embodiment, the number of the wind guide structures 120 and the number of the blades 130 are three, but not limited thereto, in other embodiments, the number of the wind guide structures 120 and the number of the blades 130 may be four or five, and the number of the wind guide structures 120 and the number of the blades 130 are not particularly limited.
Further, the ratio of the width of the blade 130 in the radial direction of the inner hub 110 to the width of the wind guiding structure 120 in the radial direction of the inner hub 110 is in the range of 5.4 to 5.8, and the ratio of the reasonable width of the blade 130 and the wind guiding structure 120 in the radial direction of the inner hub 110 can increase the area of the wind guiding structure 120 as much as possible under the condition of ensuring the connection strength, so that the wind guiding effect is improved. For ease of understanding, the width of the blade 130 in the radial direction of the inner hub 110 is denoted by a, and the width of the wind guiding structure 120 in the radial direction of the inner hub 110 is denoted by b.
In the present embodiment, the ratio of the width of the blade 130 in the radial direction of the inner hub 110 to the width of the air guiding structure 120 in the radial direction of the inner hub 110 is 5.5, but not limited thereto, and in other embodiments, the ratio of the width of the blade 130 in the radial direction of the inner hub 110 to the width of the air guiding structure 120 in the radial direction of the inner hub 110 may be 5.4 or 5.8, and the ratio of the width of the blade 130 in the radial direction of the inner hub 110 to the width of the air guiding structure 120 in the radial direction of the inner hub 110 is not particularly limited.
The wind guide structure 120 includes a main wind guide portion 121, an auxiliary wind guide portion 122, and a lifting portion 123. The main air guiding portion 121 and the auxiliary air guiding portion 122 are fixedly connected and arranged at a preset included angle, that is, the main air guiding portion 121 and the auxiliary air guiding portion 122 are arranged in a V shape. Main wind guiding portion 121 and auxiliary wind guiding portion 122 are all fixedly connected to the circumferential surface of inner hub 110, main wind guiding portion 121 is connected with blades 130 through lifting portion 123, main wind guiding portion 121 and auxiliary wind guiding portion 122 are all used for pressing air from the windward side to the leeward side, so that the wind guiding effect is improved, lifting portion 123 can transition between main wind guiding portion 121 and blades 130, so that air flows between main wind guiding portion 121 and blades 130 smoothly, and turbulence of air flow is avoided. In this embodiment, the main air guiding part 121, the auxiliary air guiding part 122 and the lifting part 123 are integrally formed, and the main air guiding part 121 of each air guiding structure 120 is fixedly connected with the auxiliary air guiding part 122 of an adjacent air guiding structure 120, so as to improve the connection strength.
In this embodiment, the main air guiding portion 121 is provided with a main air guiding surface 124, the auxiliary air guiding portion 122 is provided with an auxiliary air guiding surface 125, and both the main air guiding surface 124 and the auxiliary air guiding surface 125 are curved surfaces and are located on the windward side. In the process that the axial flow fan blade 100 rotates along the preset direction, air flows along the main air guide surface 124 and the auxiliary air guide surface 125, and both the main air guide surface 124 and the auxiliary air guide surface 125 are used for pressing the air from the windward side to the leeward side, so that the air guide effect is good.
In this embodiment, the vane 130 is in a sickle shape, and the surface of the vane 130 is a curved surface, so that the structural shape of the vane 130 conforms to the air flow, and the air guiding effect is good.
It should be noted that, one side of the lifting portion 123 is fixedly connected to the main air guiding portion 121, the other side is fixedly connected to the vane 130, and the lifting portion 123 is configured to lift the main air guiding portion 121, so that a height difference exists between the vane 130 and the main air guiding portion 121, and thus a preset included angle between the main air guiding portion 121 and the auxiliary air guiding portion 122 is increased, and further, the air guiding structure 120 is prevented from being damaged due to too large collected air flow.
Further, the lifting portion 123 is oppositely provided with a first end portion 126 and a second end portion 127, the height of the first end portion 126 is greater than that of the second end portion 127, that is, the height difference between the blade 130 connected to the first end portion 126 and the main air guiding portion 121 is greater than that between the blade 130 connected to the second end portion 127 and the main air guiding portion 121, so that the structural shape of the main air guiding portion 121 conforms to the air flow theory, and the air guiding effect is improved.
It is to be noted that a midpoint of the inner hub 110 is named as an O-point, and a plane perpendicular to an axis of the inner hub 110 and passing through the midpoint of the inner hub 110 is named as a preset plane. The lifting portion 123 is disposed obliquely to the predetermined plane, the first end portion 126 is located on one side of the predetermined plane, and the second end portion 127 is located on the other side of the predetermined plane, so as to improve the wind guiding effect of the main wind guiding portion 121.
In this embodiment, the axial flow fan blade 100 is horizontally placed on a horizontal plane, so that the windward side of the axial flow fan blade 100 faces upward, the leeward side faces downward, the preset plane is located on the horizontal plane, the first end portion 126 is located below the preset plane, the second end portion 127 is located above the preset plane, that is, the first end portion 126 is located near the leeward side, and the second end portion 127 is located near the windward side. Thus, the main wind-guiding surface 124 is disposed to intersect with the predetermined plane, one side of the main wind-guiding surface 124 close to the first end portion 126 is disposed below the predetermined plane and close to the leeward side, and one side of the main wind-guiding surface 124 close to the second end portion 127 is disposed above the predetermined plane and close to the windward side. When the axial-flow fan blade 100 rotates along the preset direction, the air flows from one side of the main wind guide surface 124 close to the second end 127 to one side of the main wind guide surface 124 close to the first end 126, that is, the main wind guide surface 124 can press the air from the windward side to the leeward side, so as to improve the wind guide effect.
Further, the auxiliary air guiding portion 122 is disposed on one side of the main air guiding portion 121 close to the first end portion 126, since the main air guiding portion 121 and the auxiliary air guiding portion 122 are disposed at a preset included angle, the auxiliary air guiding surface 125 intersects with a preset plane, one side of the auxiliary air guiding surface 125 far away from the main air guiding portion 121 is located above the preset plane and is disposed close to the windward side, and one side of the auxiliary air guiding surface 125 close to the main air guiding portion 121 is located below the preset plane and is disposed close to the leeward side. When the axial flow fan blade 100 rotates in the preset direction, the air flows from the side of the auxiliary air guide surface 125 far away from the main air guide part 121 to the side of the auxiliary air guide surface 125 close to the main air guide part 121, that is, the auxiliary air guide surface 125 can press the air from the windward side to the leeward side, so as to improve the air guide effect.
Note that, a point of the first end 126 near the main air guide portion 121 is designated as a point B, a point of the first end 126 near the blade 130 is designated as a point E, and both the point B and the point E are located below the predetermined plane. An included angle between a line OB connecting the midpoint O of the inner hub 110 and a point B of the first end 126 close to the main air guiding portion 121 and the preset plane is 8.5 to 22 degrees. The angle between the line OE connecting the midpoint O of the inner hub 110 and a point E of the first end 126 near the blades 130 and the predetermined plane is in the range of 20 degrees to 24 degrees.
In this embodiment, an included angle between a line OB connecting the midpoint O of the inner hub 110 and a point B of the first end 126 close to the main air guiding portion 121 and the preset plane is 9.63 degrees, but not limited thereto, in other embodiments, an included angle between a line OB connecting the midpoint O of the inner hub 110 and a point B of the first end 126 close to the main air guiding portion 121 and the preset plane may be 8.5 degrees or 22 degrees, and an included angle between a line OB connecting the midpoint O of the inner hub 110 and a point B of the first end 126 close to the main air guiding portion 121 and the preset plane is not specifically limited.
In the present embodiment, the angle between the line OE connecting the midpoint O of the inner hub 110 and the point E of the first end 126 near the blade 130 and the predetermined plane is 22.5 degrees, but not limited thereto, and in other embodiments, the angle between the line OE connecting the midpoint O of the inner hub 110 and the point E of the first end 126 near the blade 130 and the predetermined plane may be 20 degrees or 24 degrees, and the angle between the line OE connecting the midpoint O of the inner hub 110 and the point E of the first end 126 near the blade 130 and the predetermined plane is not particularly limited.
Further, the main wind guiding portion 121, the second end portion 127 and the blade 130 are arranged in parallel, that is, the height of the second end portion 127 is 0, the height difference between the blade 130 connected to the second end portion 127 and the main wind guiding portion 121 is 0, the second end portion 127 is regarded as a point, the main wind guiding portion 121, the second end portion 127 and the blade 130 meet at the point, the point where the second end portion 127 is located is named as a point D, and the point D is located above the preset plane. An included angle between a connection line OD between the midpoint O of the inner hub 110 and the second end 127 and the predetermined plane is 25 to 32 degrees.
In this embodiment, an angle between a connection line OD between the midpoint O of the inner hub 110 and the second end 127 and the predetermined plane is 28.23 degrees, but the present invention is not limited thereto, and in other embodiments, an angle between a connection line OD between the midpoint O of the inner hub 110 and the second end 127 and the predetermined plane may be 25 degrees or 32 degrees, and an angle between a connection line OD between the midpoint O of the inner hub 110 and the second end 127 and the predetermined plane is not particularly limited.
It is noted that a connecting line of the main wind guiding portion 121 and the inner hub 110 is disposed opposite to a first end point and a second end point, the first end point is disposed on a side of the second end point close to the auxiliary wind guiding portion 122, that is, the first end point is disposed close to the auxiliary wind guiding portion 122, and the second end point is disposed far from the auxiliary wind guiding portion 122. The first end point and the second end point are both positioned on one side of the preset plane, the first end point is named as a point A, the second end point is named as a point C, and the point A and the point C are both positioned above the preset plane. The angle between the line OA connecting the midpoint O of the inner hub 110 and the first end a and the predetermined plane is in the range of 9 to 18 degrees. An included angle between a connection line OC between the midpoint O and the second end C of the inner hub 110 and the predetermined plane is 31 to 36 degrees.
In this embodiment, the included angle between the connection line OA between the midpoint O of the inner hub 110 and the first end point a and the predetermined plane is 16.45 degrees, but the included angle is not limited thereto, and in other embodiments, the included angle between the connection line OA between the midpoint O of the inner hub 110 and the first end point a and the predetermined plane may be 9 degrees or 18 degrees, and the included angle between the connection line OA between the midpoint O of the inner hub 110 and the first end point a and the predetermined plane is not particularly limited.
In this embodiment, an included angle between a connection line OC between the midpoint O and the second end point C of the inner hub 110 and the predetermined plane is 31.31 degrees, but not limited thereto, in other embodiments, an included angle between a connection line OC between the midpoint O and the second end point C of the inner hub 110 and the predetermined plane may be 31 degrees or 36 degrees, and an included angle between a connection line OC between the midpoint O and the second end point C of the inner hub 110 and the predetermined plane is not particularly limited.
In the axial-flow fan blade 100 according to the embodiment of the present invention, the wind guide structure 120 is disposed between the inner hub 110 and the blades 130, the inner hub 110 is fixedly connected to the blades 130 through the wind guide structure 120, and the wind guide structure 120 is used for guiding air. Compared with the prior art, the axial flow fan blade 100 provided by the invention adopts the air guide structure 120 fixedly connected between the inner hub 110 and the blades 130, so that the diameter of the inner hub 110 can be reduced under the condition of ensuring the connection strength, the air guide effect is improved, the weight of the axial flow fan blade 100 is reduced, the rotation efficiency is improved, and the energy consumption is reduced.
Second embodiment
The present invention provides an air conditioner (not shown) for regulating indoor air temperature. The air conditioner includes an axial flow fan 100, a driving motor, and a condenser. The basic structure and principle of the axial flow fan blade 100 and the technical effects thereof are the same as those of the first embodiment, and for the sake of brief description, reference may be made to corresponding contents in the first embodiment for the part of this embodiment that is not mentioned.
In this embodiment, the air conditioner includes an air conditioner external unit and an air conditioner internal unit (not shown), and the air conditioner external unit is connected with the air conditioner internal unit to jointly realize the function of cooling or heating the room. The air conditioner outdoor unit comprises an axial flow fan blade 100, a condenser and a driving motor, wherein the driving motor is connected with the axial flow fan blade 100 to drive the axial flow fan blade 100 to rotate, the axial flow fan blade 100 can drive air to flow while rotating to form heat exchange air flow, and the heat exchange air flow can exchange heat for the condenser to ensure the normal operation of the condenser.
The beneficial effects of the air conditioner according to the embodiment of the present invention are the same as those of the first embodiment, and are not described herein again.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected by one skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.
Claims (14)
1. The axial flow fan blade is characterized by comprising an inner hub (110), a wind guide structure (120) and blades (130), wherein the wind guide structure (120) is arranged between the inner hub (110) and the blades (130), the inner hub (110) is fixedly connected with the blades (130) through the wind guide structure (120), and the wind guide structure (120) is used for guiding air.
2. The axial-flow fan blade according to claim 1, wherein the air guide structure (120) includes a main air guide portion (121) and an auxiliary air guide portion (122), the main air guide portion (121) and the auxiliary air guide portion (122) are fixedly connected and arranged at a predetermined included angle, the main air guide portion (121) and the auxiliary air guide portion (122) are both fixedly connected to the circumferential surface of the inner hub (110), and the main air guide portion (121) is connected to the blade (130).
3. The axial-flow fan blade according to claim 2, wherein the air guide structure (120) further comprises a lifting portion (123), one side of the lifting portion (123) is fixedly connected with the main air guide portion (121), the other side of the lifting portion is fixedly connected with the blade (130), and the lifting portion (123) is used for lifting the main air guide portion (121) so that a height difference exists between the blade (130) and the main air guide portion (121).
4. The axial-flow fan blade according to claim 3, characterized in that the lifting portion (123) is provided with a first end portion (126) and a second end portion (127) opposite to each other, and the height of the first end portion (126) is greater than the height of the second end portion (127).
5. The axial flow fan blade according to claim 4, wherein said first end (126) is located on one side of a predetermined plane and said second end (127) is located on the other side of said predetermined plane, said predetermined plane being a plane perpendicular to the axis of said inner hub (110) and passing through the midpoint of said inner hub (110).
6. The axial fan blade according to claim 5, wherein an included angle between a line connecting a midpoint of the inner hub (110) and a point of the first end portion (126) close to the main air guiding portion (121) and the preset plane is 8.5 to 22 degrees.
7. The axial flow fan blade according to claim 5, wherein a line connecting a midpoint of the inner hub (110) and a point of the first end (126) near the blade (130) forms an angle in a range of 20 degrees to 24 degrees with the predetermined plane.
8. The axial fan blade according to claim 5, wherein the main wind guiding portion (121), the second end portion (127) and the blade (130) are arranged in a flush manner, and an included angle between a connecting line of a midpoint of the inner hub (110) and the second end portion (127) and the preset plane is 25 degrees to 32 degrees.
9. The axial-flow fan blade according to claim 2, wherein a connecting line between the main wind guide portion (121) and the inner hub (110) is provided with a first end point and a second end point opposite to each other, the first end point is provided on a side of the second end point close to the auxiliary wind guide portion (122), the first end point and the second end point are both located on one side of a preset plane, and the preset plane is a plane perpendicular to an axis of the inner hub (110) and passing through a midpoint of the inner hub (110).
10. The axial flow fan blade according to claim 9, wherein a line connecting a midpoint of the inner hub (110) and the first end point forms an angle in a range of 9 degrees to 18 degrees with the predetermined plane.
11. The axial flow fan blade according to claim 9, wherein a line connecting the midpoint of the inner hub (110) and the second end point forms an angle in a range of 31 degrees to 36 degrees with the predetermined plane.
12. The axial fan blade according to claim 1, wherein a ratio of a width of the blade (130) in a radial direction of the inner hub (110) to a width of the air guide structure (120) in the radial direction of the inner hub (110) is in a range of 5.4 to 5.8.
13. The axial-flow fan blade according to claim 1, wherein the number of the wind guide structures (120) and the number of the blades (130) are plural, the wind guide structures (120) are connected end to end and are fixedly connected to the inner hub (110), the inner hub (110) is enclosed between the wind guide structures (120), and each wind guide structure (120) is fixedly connected to one of the blades (130).
14. An air conditioner characterized by comprising the axial-flow fan blade as claimed in any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405903.8A CN115217791A (en) | 2021-04-15 | 2021-04-15 | Axial flow fan blade and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405903.8A CN115217791A (en) | 2021-04-15 | 2021-04-15 | Axial flow fan blade and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115217791A true CN115217791A (en) | 2022-10-21 |
Family
ID=83604660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110405903.8A Pending CN115217791A (en) | 2021-04-15 | 2021-04-15 | Axial flow fan blade and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115217791A (en) |
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2021
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