CN215927901U - Axial flow wind wheel and air conditioner - Google Patents
Axial flow wind wheel and air conditioner Download PDFInfo
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- CN215927901U CN215927901U CN202122008911.7U CN202122008911U CN215927901U CN 215927901 U CN215927901 U CN 215927901U CN 202122008911 U CN202122008911 U CN 202122008911U CN 215927901 U CN215927901 U CN 215927901U
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Abstract
The utility model discloses an axial flow wind wheel and an air conditioner, and relates to the technical field of air conditioners. The axial flow wind wheel includes a hub and a plurality of blades. The blades are fixedly connected to the circumferential surface of the hub in an annular array mode, the blades are oppositely provided with a front edge and a tail edge, the tail edge is provided with a notch which is sunken towards the direction of the front edge, the position, close to the front edge, of the notch is provided with a vertex, and the perpendicular line of the connecting line of the vertex and the midpoint of the hub in one blade is intersected with the front edge of the adjacent blade. Compared with the prior art, the axial flow wind wheel provided by the utility model adopts the notch arranged on the tail edge and the vertex arranged at the position close to the front edge of the notch, so that the weight of the axial flow wind wheel is reduced, the uniformity of the air outlet flow is improved, the material cost is reduced, the energy consumption is reduced, and the air outlet quantity is increased.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to an axial flow wind wheel and an air conditioner.
Background
At present, in the application of an air conditioner external unit, an air outlet flow is generally generated in a mode that a driving motor drives an axial flow wind wheel to rotate so as to carry out air cooling heat exchange on a condenser and discharge the heat of the condenser to the outside. However, the existing axial flow wind wheel has heavier weight, higher material cost and higher energy consumption, and the uniformity of the outlet air flow generated by the rotation of the axial flow wind wheel is poorer and the air outlet quantity is smaller.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problem of how to improve the uniformity of the air outlet flow while reducing the weight of the axial flow wind wheel, reduce the material cost, reduce the energy consumption and improve the air outlet quantity.
In order to solve the above problems, the technical solution of the present invention is realized as follows:
in a first aspect, the utility model provides an axial flow wind wheel, which comprises a hub and a plurality of blades, wherein the blades are fixedly connected to the circumferential surface of the hub in an annular array manner, the blades are oppositely provided with a front edge and a tail edge, the tail edge is provided with a notch which is sunken towards the direction of the front edge, the position of the notch close to the front edge is provided with a vertex, and the perpendicular line of the connecting line of the vertex in one blade and the midpoint of the hub is intersected with the front edge of an adjacent blade. Compared with the prior art, the axial flow wind wheel provided by the utility model adopts the notch arranged on the tail edge and the vertex arranged at the position close to the front edge of the notch, so that the weight of the axial flow wind wheel is reduced, the uniformity of the air outlet flow is improved, the material cost is reduced, the energy consumption is reduced, and the air outlet quantity is increased.
Furthermore, the end of the front edge far away from the hub is provided with an end point, and a perpendicular line of a connecting line of the vertex of one blade and the midpoint of the hub penetrates through the end point of the adjacent blade. The area of the blade is reduced as much as possible under the condition of ensuring the air flow gathering effect, the weight of the axial flow wind wheel is reduced, and the uniformity of the air outlet flow is improved.
Furthermore, the blades are oppositely provided with an inner edge and an outer edge, the inner edge is connected with the hub, and the end point is the intersection point of the outer edge and the front edge. During the rotation of the blade, the end point is first contacted with air, so that the outlet air flow flows onto the blade from the front edge.
Further, the apex of one blade is spaced from the end of an adjacent blade in a range of 150 mm to 180 mm. The reasonable distance between the middle vertex of one blade and the end point of the adjacent blade can ensure the effect of gathering back and increase the area of the notch as much as possible, thereby reducing the weight of the axial flow wind wheel, reducing the material cost and reducing the energy consumption.
Further, the apex of one blade is spaced 165 millimeters from the end point of an adjacent blade.
Further, on the orthographic projection plane of the axial flow wind wheel, the central point of the hub is taken as the center of a circle, and the central angle range of an arc line formed between the middle vertex of one blade and the front edge of the adjacent blade is 45-60 degrees. The central angle of the arc line formed between the top point of one reasonable blade and the front edge of the adjacent blade can improve the effect of the front edge of the blade on the air outlet flow flowing out from the notch, so that the air outlet quantity is improved.
Further, on the orthographic projection plane of the axial flow wind wheel, the central point of the hub is taken as the center, and the central angle of an arc line formed between the middle vertex of one blade and the front edge of the adjacent blade is 52 degrees.
Furthermore, the notch is arranged in a V shape. The V-shaped notch can guide the flowing direction of the air, and the stability of the air flowing is improved.
Further, the number of the blades is three, and the three blades are arranged on the circumferential surface of the hub in an annular array. The hub can drive three blades to rotate simultaneously so that air flows to form air outlet flow.
In a second aspect, the utility model provides an air conditioner, which includes the above axial flow wind wheel, the axial flow wind wheel includes a hub and a plurality of blades, the plurality of blades are fixedly connected to the circumferential surface of the hub in an annular array, the blades are oppositely provided with a front edge and a tail edge, the tail edge is provided with a notch recessed towards the front edge, the position of the notch close to the front edge has a vertex, and the perpendicular line of the connection line of the vertex in one blade and the midpoint in the hub intersects with the front edge of the adjacent blade. The air conditioner can improve the uniformity of the air outlet flow while reducing the weight of the axial flow wind wheel, reduce the material cost, reduce the energy consumption and improve the air outlet quantity.
Drawings
Fig. 1 is an axial side view of an axial flow wind wheel according to a first embodiment of the present invention;
fig. 2 is a left side view of an axial flow wind wheel according to a first embodiment of the present invention;
fig. 3 is a plan view of an axial flow wind wheel according to a first embodiment of the present invention;
fig. 4 is a mathematical model diagram of an axial flow wind wheel according to a first embodiment of the present invention.
Description of reference numerals:
100-axial flow wind wheel; 110-a hub; 120-blades; 121-leading edge; 122-trailing edge; 123-inner edge; 124-outer edge; 125-notch; 126-a first groove; 127-a second groove; 128-fold.
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 and fig. 2, an embodiment of the utility model provides an axial flow wind wheel 100 for driving air to flow. The axial flow wind wheel 100 can reduce the weight, improve the uniformity of the air outlet flow, reduce the material cost, reduce the energy consumption and improve the air outlet quantity.
It should be noted that the axial flow wind wheel 100 is applied to an air conditioner external unit (not shown) which is installed outdoors and connected with an air conditioner internal unit (not shown), and the air conditioner external unit and the air conditioner internal unit act together to realize a function of regulating and controlling indoor air temperature. The outdoor unit includes a condenser (not shown), a driving motor (not shown), and a casing (not shown), wherein the condenser, the driving motor, and the axial-flow wind wheel 100 are all installed in the casing. The driving motor is connected to the axial flow wind wheel 100 to drive the axial flow wind wheel 100 to rotate. The position of the axial flow wind wheel 100 corresponds to the position of a condenser, and the condenser is used for exchanging heat for a refrigerant. Axial flow wind wheel 100 can form the negative pressure at the pivoted in-process to drive the air flow and form the air-out air current, this air-out air current is used for carrying out the forced air cooling to the condenser, in order to take away the heat of condenser, guarantees the condenser normal operating.
In this embodiment, the number of the blades 120 is three, the three blades 120 are disposed on the circumferential surface of the hub 110 in an annular array, and the hub 110 can drive the three blades 120 to rotate at the same time, so that the air flows to form the outlet airflow. However, the number of the blades 120 is not limited to four, and in other embodiments, the number of the blades 120 may be four or five, and the number of the blades 120 is not particularly limited.
Referring to fig. 3 and 4, it should be noted that the blade 120 is provided with a leading edge 121, a trailing edge 122, an inner edge 123 and an outer edge 124, wherein the leading edge 121 and the trailing edge 122 are disposed oppositely, the inner edge 123 and the outer edge 124 are disposed oppositely, and the leading edge 121, the outer edge 124, the trailing edge 122 and the inner edge 123 are connected end to jointly enclose the contour shape of the blade 120. Specifically, the inner edge 123 is a side of the blade 120 connected to the hub 110, the outer edge 124 is a side of the blade 120 away from the hub 110, the leading edge 121 is a side of the blade 120 facing the wind during rotation, and the trailing edge 122 is a side of the blade 120 facing the wind during rotation.
It is worth noting that the trailing edge 122 is provided with a notch 125 recessed towards the leading edge 121, and the notch 125 can reduce the weight of the axial flow wind wheel 100, reduce the material cost, and reduce the energy consumption. The notch 125 has a vertex near the leading edge 121, where the vertex is the deepest point of the notch 125, and is also the closest point of the sidewall of the notch 125 to the leading edge 121, or the farthest point of the sidewall of the notch 125 to the trailing edge 122. Specifically, a perpendicular line of a connecting line between a vertex of one blade 120 and a midpoint of the hub 110 intersects with the front edge 121 of the adjacent blade 120, so that the air flow flowing out of the notch 125 of the one blade 120 can be gathered by the front edge 121 of the adjacent blade 120, the uniformity of the air outlet flow is improved, and the air outlet amount is increased.
In this embodiment, the notch 125 is disposed in a V shape, the direction of the sharp corner of the notch 125 is the same as the rotation direction of the blade 120, i.e., the direction from the trailing edge 122 to the leading edge 121, and the V-shaped notch 125 can guide the flow direction of the air, thereby improving the stability of the air flow. The air forms an outlet airflow along the surface of the blade 120 during the rotation of the blade 120, the outlet airflow flows from the leading edge 121 to the trailing edge 122, and during this process, a part of the outlet airflow flows out of the notch 125 and is collected by the next blade 120. However, the shape of the notch 125 is not limited to the above, and in other embodiments, the notch 125 may have a W shape or a U shape.
It should be noted that an end point is arranged at one end of the leading edge 121 far from the hub 110, and a perpendicular line of a connecting line between a vertex of one blade 120 and a midpoint of the hub 110 passes through the end point of an adjacent blade 120, so as to reduce the area of the blade 120 as much as possible under the condition of ensuring the air flow gathering effect, reduce the weight of the axial flow wind wheel 100, and improve the uniformity of the outlet air flow.
In this embodiment, the inner edge 123 is connected to the hub 110, and the end point is the intersection of the outer edge 124 and the leading edge 121, and the end point is the point on the outer edge 124 that is farthest from the trailing edge 122, and is also the point on the leading edge 121 that is farthest from the inner edge 123. Specifically, during rotation of the blade 120, the end point is first contacted by air, so that the outlet airflow flows from the leading edge 121 onto the blade 120.
Further, the distance between the vertex of one blade 120 and the end point of the adjacent blade 120 ranges from 150 mm to 180 mm, and the reasonable distance between the vertex of one blade 120 and the end point of the adjacent blade 120 can increase the area of the notch 125 as much as possible while ensuring the retraction effect, thereby reducing the weight of the axial flow wind wheel 100, reducing the material cost and reducing the energy consumption.
In this embodiment, the apex of one blade 120 is spaced 165 mm from the end of an adjacent blade 120. However, the distance between the vertex of one blade 120 and the end point of the adjacent blade 120 may be 150 mm or 180 mm in other embodiments, and the distance between the vertex of one blade 120 and the end point of the adjacent blade 120 is not particularly limited.
It is worth noting that, on the orthographic projection plane of the axial flow wind wheel 100, with the midpoint of the hub 110 as the center of a circle, the central angle range of the arc line formed between the vertex of one blade 120 and the front edge 121 of the adjacent blade 120 is 45 degrees to 60 degrees, and the reasonable central angle of the arc line formed between the vertex of one blade 120 and the front edge 121 of the adjacent blade 120 can improve the gathering effect of the front edge 121 of the blade 120 on the outlet airflow flowing out from the notch 125, so as to improve the air output.
In this embodiment, on the orthographic projection plane of the axial flow wind wheel 100, the central point of the arc line formed between the vertex of one blade 120 and the leading edge 121 of the adjacent blade 120 is 52 degrees, taking the midpoint of the hub 110 as the center. However, the central angle of the camber line formed between the vertex of one blade 120 and the leading edge 121 of the adjacent blade 120 may be 45 degrees or 60 degrees in other embodiments, and the central angle of the camber line formed between the vertex of one blade 120 and the leading edge 121 of the adjacent blade 120 is not particularly limited.
For ease of understanding, the apex of the blade 120 is designated as a, the end points of the blade 120 are designated as b, the midpoint of the hub 110 is designated as o, the distance between the apex of one blade 120 and the end point of an adjacent one of the blades 120 is designated as H, and the central angle of the arc formed between the apex of one of the blades 120 and the leading edge 121 of an adjacent one of the blades 120 is designated as C.
It is noted that the blade 120 defines a plurality of first grooves 126 and a plurality of second grooves 127. The first grooves 126 are disposed near the trailing edge 122, the first grooves 126 are circular, and the plurality of first grooves 126 are densely distributed in a dotted manner, so that the layout manner is flexible, and the problem of vortex concentration on the blade 120 is solved. The second grooves 127 are arranged close to the front edge 121, the groove walls between a plurality of second grooves 127 are distributed on the blade 120 in a vein shape, and the groove walls between two adjacent second grooves 127 form a V shape, so that the airflow is better guided to flow from the front edge 121 of the blade 120 to the tail edge 122 of the blade 120, and is sent to the next blade 120, thereby realizing the function of rectifying the airflow and reducing the noise generated by the blade 120 in the rotating process.
In this embodiment, outer fringe 124 is provided with hem 128, and hem 128 can improve the intensity of outer fringe 124 to improve whole blade 120's intensity, prevent that blade 120 from taking place to warp or bending, and hem 128 can also carry out the current limiting to the air-out air current, prevent the outside loss of air-out air current, guarantee the air output.
According to the axial-flow wind wheel 100 of the embodiment of the utility model, a plurality of blades 120 are fixedly connected to the circumferential surface of the hub 110 in an annular array, the blades 120 are oppositely provided with a leading edge 121 and a trailing edge 122, the trailing edge 122 is provided with a notch 125 which is recessed towards the leading edge 121, the position of the notch 125 close to the leading edge 121 is provided with a vertex, and a perpendicular line of a connecting line of the vertex in one blade 120 and the midpoint of the hub 110 is intersected with the leading edge 121 of the adjacent blade 120. Compared with the prior art, the axial flow wind wheel 100 provided by the utility model adopts the notch 125 arranged on the trailing edge 122 and the vertex arranged at the position of the notch 125 close to the leading edge 121, so that the weight of the axial flow wind wheel 100 can be reduced, the uniformity of the air outlet flow can be improved, the material cost can be reduced, the energy consumption can be reduced, and the air outlet quantity can be increased.
Second embodiment
The present invention provides an air conditioner (not shown) for regulating indoor air temperature. The air conditioner comprises an air conditioner external unit and an air conditioner internal unit, wherein the air conditioner external unit comprises a shell, a condenser, a driving motor and an axial flow wind wheel 100. The basic structure and principle of the axial flow wind wheel 100 and the generated technical effects are the same as those of the first embodiment, and for the sake of brief description, the corresponding contents in the first embodiment may be referred to where this embodiment is not mentioned.
In this embodiment, the air conditioner outer unit is installed outdoors, and is connected with the air conditioner indoor unit, and the air conditioner outer unit and the air conditioner indoor unit combined action to realize the function of regulation and control indoor temperature. The condenser, the driving motor and the axial flow wind wheel 100 are all installed in the shell, the driving motor is connected with the axial flow wind wheel 100, and the position of the axial flow wind wheel 100 corresponds to the position of the condenser. Axial flow wind wheel 100 can form the negative pressure at the pivoted in-process to drive the air flow and form the air-out air current, this air-out air current can carry out the forced air cooling to the condenser, with the heat of taking away the condenser, guarantees condenser normal operating, thereby realizes that the air conditioner internal unit heats or refrigerated function indoor.
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 therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. The axial flow wind wheel is characterized by comprising a hub (110) and a plurality of blades (120), wherein the blades (120) are fixedly connected to the peripheral surface of the hub (110) in an annular array mode, the blades (120) are oppositely provided with a front edge (121) and a tail edge (122), the tail edge (122) is provided with a notch (125) which is sunken towards the direction of the front edge (121), the position, close to the front edge (121), of the notch (125) is provided with a vertex, and the vertex in one blade (120) is intersected with the perpendicular line of the connecting line of the midpoints of the hubs (110) and the front edge (121) of the adjacent blade (120).
2. The axial flow wind wheel according to claim 1, characterized in that the end of the leading edge (121) remote from the hub (110) is provided with an end point, and the perpendicular to the line between the apex and the midpoint of the hub (110) in one of the blades (120) passes through the end point of the adjacent one of the blades (120).
3. The axial wind rotor according to claim 2, characterized in that the blades (120) are oppositely provided with an inner edge (123) and an outer edge (124), the inner edge (123) is connected with the hub (110), and the end point is the intersection point of the outer edge (124) and the leading edge (121).
4. The axial flow wind rotor according to claim 2, characterized in that the distance between the apex of one of the blades (120) and the apex of an adjacent one of the blades (120) is in the range of 150 mm to 180 mm.
5. The axial flow wind rotor according to claim 4, characterized in that the distance between the apex of one of the blades (120) and the apex of an adjacent one of the blades (120) is 165 mm.
6. The axial-flow wind wheel according to claim 1, characterized in that on the orthographic projection plane of the axial-flow wind wheel, the central angle of an arc line formed between the apex of one of the blades (120) and the leading edge (121) of an adjacent one of the blades (120) is 45 degrees to 60 degrees around the center point of the hub (110).
7. The axial-flow wind wheel according to claim 6, characterized in that on the orthographic projection plane of the axial-flow wind wheel, the central angle of an arc line formed between the top point of one blade (120) and the leading edge (121) of the adjacent blade (120) is 52 degrees with the center point of the hub (110) as the center.
8. Axial wind wheel according to claim 1, characterized in that the gap (125) is arranged in a V-shape.
9. The axial flow wind wheel according to claim 1, characterized in that the number of the blades (120) is three, and three blades (120) are arranged on the circumferential surface of the hub (110) in an annular array.
10. An air conditioner characterized by comprising the axial flow wind wheel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122008911.7U CN215927901U (en) | 2021-08-24 | 2021-08-24 | Axial flow wind wheel and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122008911.7U CN215927901U (en) | 2021-08-24 | 2021-08-24 | Axial flow wind wheel and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215927901U true CN215927901U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122008911.7U Active CN215927901U (en) | 2021-08-24 | 2021-08-24 | Axial flow wind wheel and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215927901U (en) |
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2021
- 2021-08-24 CN CN202122008911.7U patent/CN215927901U/en active Active
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