CN115717610A - Outer quick-witted fan blade of air conditioner and air conditioner - Google Patents
Outer quick-witted fan blade of air conditioner and air conditioner Download PDFInfo
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- CN115717610A CN115717610A CN202110974858.8A CN202110974858A CN115717610A CN 115717610 A CN115717610 A CN 115717610A CN 202110974858 A CN202110974858 A CN 202110974858A CN 115717610 A CN115717610 A CN 115717610A
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Abstract
The invention discloses an air conditioner external unit fan blade and an air conditioner, and relates to the technical field of air conditioners. The fan blade of the air conditioner external unit comprises a hub and a blade. The blades are oppositely provided with inner edges and outer edges, the inner edges are fixedly connected to the circumferential surface of the hub, the blades are also oppositely provided with windward sides and leeward sides, the blades are in a curved plate shape, and the blades are firstly arranged towards the leeward sides in a concave mode in the direction from the inner edges to the outer edges and then arranged towards the windward sides in a concave mode. Compared with the prior art, the fan blade of the air conditioner outdoor unit provided by the invention adopts the blades which are firstly arranged towards the leeward side in a concave mode and then arranged towards the windward side in the direction from the inner edge to the outer edge, so that the stability of air outlet of the fan blade of the air conditioner outdoor unit can be improved, the balance of air outlet is ensured, the air outlet quantity is improved, and the generated noise is reduced.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner outer unit fan blade and an air conditioner.
Background
At present, in the application of an air conditioner outdoor unit, an air outlet flow is generally generated in a mode that a driving motor drives a fan blade 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 blades of the fan blade of the outdoor unit of the air conditioner are all flat, and the stability of the air outlet flow generated in the rotating process is poor, the air outlet quantity is small, and the noise is large.
Disclosure of Invention
The invention solves the problem of how to improve the stability of the fan blade air outlet of the air conditioner external unit, ensure the balance of the air outlet, improve the air outlet quantity and reduce the generated noise.
In order to solve the problems, the technical scheme of the invention is realized as follows:
the invention provides an air conditioner outdoor unit fan blade, which comprises a hub and a blade, wherein the blade is oppositely provided with an inner edge and an outer edge, the inner edge is fixedly connected to the circumferential surface of the hub, the blade is also oppositely provided with a windward side and a leeward side, the blade is in a curved plate shape, and the blade is firstly arranged towards the leeward side in a concave mode and then arranged towards the windward side in a concave mode in the direction from the inner edge to the outer edge. Compared with the prior art, the fan blade of the air conditioner outdoor unit provided by the invention adopts the blades which are firstly recessed towards the leeward side and then recessed towards the windward side in the direction from the inner edge to the outer edge, so that the air outlet stability of the fan blade of the air conditioner outdoor unit can be improved, the air outlet balance is ensured, the air outlet quantity is improved, and the generated noise is reduced.
Furthermore, the blade is also provided with a front edge and a tail edge which are oppositely connected end to end. To collectively define the profile shape of the blade.
Further, the angle of the depression of the middle part of the blade towards the leeward side is smaller than that of the depression of the tail edge towards the leeward side, and the angle of the depression of the middle part of the blade towards the leeward side is smaller than that of the depression of the front edge towards the leeward side. The first part of blades arch towards the middle part, so that the first part of blades have a better wind gathering effect, and the air output of the fan blades of the air conditioner outdoor unit is improved.
Further, the angle of the recess of the tail edge towards the windward side is smaller than the angle of the recess of the middle part of the blade towards the windward side, and the angle of the recess of the middle part of the blade towards the windward side is smaller than the angle of the recess of the front edge towards the windward side. So that the second part blade is gradually flattened from the front edge to the tail edge, thereby improving the wind guiding effect of the front edge, improving the stability of the wind outlet, ensuring the balance of the wind outlet and reducing the noise.
Further, the minimum angle range of the blade concavity toward the leeward side is 160 to 170 degrees. The reasonable concave angle can ensure the wind gathering effect and facilitate the production and processing of the blades, thereby further improving the air output.
Further, the minimum angle of the blade concavity toward the leeward side is 168 degrees.
Further, the minimum angle range of the blade depression toward the windward side is 150 to 170 degrees. Reasonable angle of depression can further improve the wind-guiding effect, improves the stability of air-out, guarantees that the air-out is balanced.
Further, the minimum angle of the blade depression toward the windward side is 160 degrees.
Furthermore, a reinforcing rib is arranged on the leeward side and fixedly connected with the hub. The strengthening rib can improve the intensity of blade, prevents that the blade from taking place to warp or bending for wheel hub, improves the stability of outer quick-witted fan blade structure of air conditioner.
In a second aspect, the invention provides an air conditioner, which comprises the air conditioner external unit fan blade, wherein the air conditioner external unit fan blade comprises a hub and a blade, the blade is oppositely provided with an inner edge and an outer edge, the inner edge is fixedly connected to the circumferential surface of the hub, the blade is also oppositely provided with a windward side and a leeward side, the blade is in a curved plate shape, and the blade is firstly arranged towards the leeward side in a concave manner and then towards the windward side in the direction from the inner edge to the outer edge. The air conditioner can improve the stability of the air outlet of the fan blades of the air conditioner external unit, guarantee the balance of the air outlet, improve the air outlet quantity and reduce the generated noise.
Drawings
Fig. 1 is an axial side view of a fan blade of an external unit of an air conditioner according to a first embodiment of the present invention;
fig. 2 is a front view of a fan blade of an external unit of an air conditioner according to a first embodiment of the present invention;
fig. 3 is a top view of a fan blade of an external unit of an air conditioner according to a first embodiment of the present invention;
fig. 4 is a bottom view of a fan blade of an external unit of an air conditioner according to a first embodiment of the present invention;
fig. 5 is a sectional view of a middle portion of a blade in a fan of an outdoor unit for an air conditioner according to a first embodiment of the present invention;
fig. 6 is a schematic structural view of a blade in an air conditioner outdoor unit fan according to a first embodiment of the present invention.
Description of reference numerals:
100-air conditioner external unit fan blades; 110-a hub; 120-blade; 121-leading edge; 122-trailing edge; 123-inner edge; 124-outer edge; 125-windward side; 126-leeward side; 127-reinforcing ribs.
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 present invention provides a fan blade 100 of an air conditioner outdoor unit, for driving air to flow. The fan blade 100 air outlet stability of the air conditioner external unit can be improved, the air outlet balance is guaranteed, the air outlet quantity is improved, and the generated noise is reduced.
It should be noted that the fan 100 of the air conditioner external unit is applied to the air conditioner external unit (not shown), the air conditioner external unit is installed outdoors and connected with the air conditioner internal unit (not shown), and the air conditioner external unit and the air conditioner internal unit act together to realize the function of regulating and controlling the indoor 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 outdoor unit fan 100 are all installed in the casing. The driving motor is connected with the air conditioner external unit fan blade 100 to drive the air conditioner external unit fan blade 100 to rotate. The position of the fan blade 100 of the air conditioner external unit corresponds to the position of a condenser, and the condenser is used for exchanging heat with a refrigerant. The air conditioner external unit fan blade 100 can form negative pressure in a rotating process to drive air to flow to form air outlet airflow, and the air outlet airflow is used for cooling the condenser to take away heat of the condenser and ensure normal operation of the condenser.
The air conditioner outdoor unit fan blade 100 includes a hub 110 and a blade 120. Hub 110 is cylindric, and blade 120 fixed connection is on hub 110's global, and hub 110 can drive blade 120 and rotate to drive the air flow. Hub 110 is configured to be connected to a driving motor, and the driving motor can drive blades 120 to rotate via hub 110.
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, 4, 5 and 6, 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 opposite to each other, the inner edge 123 and the outer edge 124 are disposed opposite to each other, and the leading edge 121, the inner edge 123, the trailing edge 122 and the outer edge 124 are connected end to jointly enclose the contour shape of the blade 120. Specifically, the inner edge 123 is a side edge of the blade 120 connected to the hub 110, and the inner edge 123 is fixedly connected to the circumferential surface of the hub 110; the outer edge 124 is the side edge of the blade 120 far away from the hub 110, and the outer edge 124 is positioned at the outermost side of the fan blade 100 of the air conditioner outdoor unit; the leading edge 121 and the trailing edge 122 are disposed opposite to each other in the rotation direction of the blade 120, and the direction from the trailing edge 122 to the leading edge 121 is the rotation direction of the blade 120.
It should be noted that the blade 120 is oppositely provided with a windward side 125 and a leeward side 126, and the blade 120 drives air to flow during the rotation process to form an outlet airflow, and the outlet direction of the outlet airflow is from the windward side 125 to the leeward side 126. Specifically, the blade 120 is curved, and the blade 120 is first recessed toward the leeward side 126 and then recessed toward the windward side 125 in a direction from the inner edge 123 to the outer edge 124. The blades 120 arranged in the curved plate shape can improve the stability of the air outlet of the fan blade 100 of the air conditioner external unit, ensure the balance of the air outlet, improve the air outlet amount and reduce the generated noise.
Further, since the blade 120 is firstly recessed toward the leeward side 126 and then recessed toward the windward side 125, the blade 120 is divided into two parts in the direction from the inner edge 123 to the outer edge 124, the first part of the blade 120 is recessed toward the leeward side 126, and the second part of the blade 120 is recessed toward the windward side 125.
In this embodiment, the angle of the depression of the middle of the blade 120 towards the leeward side 126 is smaller than the angle of the depression of the trailing edge 122 towards the leeward side 126, and the angle of the depression of the middle of the blade 120 towards the leeward side 126 is smaller than the angle of the depression of the leading edge 121 towards the leeward side 126. Specifically, the middle of the blade 120 is located between the front edge 121 and the rear edge 122, and in the first part of the blades 120, the recessed angle of the middle of the blade 120 is smaller than the recessed angle of the front edge 121 and smaller than the recessed angle of the rear edge 122, that is, in the first part of the blades 120, the recessed degree of the middle of the blade 120 is the largest, and the recessed degrees of the front edge 121 and the rear edge 122 are smaller, so that the first part of the blades 120 is arched towards the middle, and thus the first part of the blades has a better wind gathering effect, and the air output of the air conditioner outdoor unit blade 100 is increased.
It should be noted that the minimum angle range of the depression of the blade 120 towards the leeward side 126 is 160 degrees to 170 degrees, that is, in the first part of the blade 120, the range of the depression angle of the middle part of the blade 120 is 160 degrees to 170 degrees, and the reasonable depression angle can ensure the wind gathering effect and facilitate the production and processing of the blade 120, thereby further improving the air output.
In this embodiment, the minimum angle of the depression of the blade 120 towards the leeward side 126 is 168 degrees, but the invention is not limited thereto, and in other embodiments, the minimum angle of the depression of the blade 120 towards the leeward side 126 may be 160 degrees or 170 degrees, and the minimum angle of the depression of the blade 120 towards the leeward side 126 is not particularly limited.
In this embodiment, the angle of the recess of the trailing edge 122 towards the windward side 125 is smaller than the angle of the recess of the middle of the blade 120 towards the windward side 125, and the angle of the recess of the middle of the blade 120 towards the windward side 125 is smaller than the angle of the recess of the leading edge 121 towards the windward side 125. Specifically, the middle of the blade 120 is located between the leading edge 121 and the trailing edge 122, in the second part of the blade 120, the recessed angle of the trailing edge 122 is smaller than the recessed angle of the middle of the blade 120, and the recessed angle of the middle of the blade 120 is smaller than the recessed angle of the leading edge 121, that is, in the second part of the blade 120, the recessed degree of the trailing edge 122 is the largest, the recessed degree of the middle of the blade 120 is smaller, and the recessed degree of the leading edge 121 is the smallest, so that the second part of the blade 120 is gradually flattened from the trailing edge 122 to the leading edge 121, thereby improving the wind guiding effect of the leading edge 121, improving the stability of wind outlet from the trailing edge 122, ensuring balanced wind outlet, and reducing noise.
It is worth noting that the minimum angle range of the depression of the blade 120 towards the windward side 125 is 150 degrees to 170 degrees, that is, in the second part of the blade 120, the range of the depression angle of the trailing edge 122 is 150 degrees to 170 degrees, and the reasonable depression angle can further improve the wind guiding effect, improve the stability of the wind outlet, and ensure the balance of the wind outlet.
In the present embodiment, the minimum angle of the depression of the blade 120 towards the windward side 125 is 160 degrees, but the present invention is not limited thereto, and in other embodiments, the minimum angle of the depression of the blade 120 towards the windward side 125 may be 150 degrees or 170 degrees, and the minimum angle of the depression of the blade 120 towards the windward side 125 is not particularly limited.
For ease of understanding, the minimum angle at which the blade 120 is recessed towards the leeward side 126 (the recessed angle at the middle of the blade 120 in the first part of the blade 120) is denoted by a, and the minimum angle at which the blade 120 is recessed towards the windward side 125 (the recessed angle at the trailing edge 122 in the second part of the blade 120) is denoted by B.
The reinforcing rib 127 is arranged on the leeward side 126, the reinforcing rib 127 is fixedly connected with the hub 110, and the reinforcing rib 127 can improve the strength of the blade 120, prevent the blade 120 from deforming or bending relative to the hub 110, and improve the structural stability of the air conditioner external unit fan blade 100.
According to the air conditioner external unit fan blade 100 provided by the embodiment of the invention, the blade 120 is provided with the inner edge 123 and the outer edge 124 oppositely, the inner edge 123 is fixedly connected to the circumferential surface of the hub 110, the blade 120 is also provided with the windward side 125 and the leeward side 126 oppositely, the blade 120 is in a curved plate shape, and the blade 120 is firstly arranged towards the leeward side 126 in a concave manner and then arranged towards the windward side 125 in a concave manner in the direction from the inner edge 123 to the outer edge 124. Compared with the prior art, the fan blade 100 of the air conditioner outdoor unit provided by the invention adopts the fan blade 120 which is firstly recessed towards the leeward side 126 and then recessed towards the windward side 125 in the direction from the inner edge 123 to the outer edge 124, so that the air outlet stability of the fan blade 100 of the air conditioner outdoor unit can be improved, the air outlet balance is ensured, the air outlet quantity is improved, and the generated noise is reduced.
Second embodiment
The present invention provides an air conditioner (not shown) for regulating indoor air temperature. The air conditioner comprises an air conditioner outer unit and an air conditioner inner unit, wherein the air conditioner outer unit comprises a shell, a condenser, a driving motor and an air conditioner outer unit fan blade 100. The basic structure and principle of the fan 100 of the outdoor unit of the air conditioner 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 parts not mentioned in this embodiment.
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 fan blades 100 of the air conditioner external unit are all arranged in the shell, the driving motor is connected with the fan blades 100 of the air conditioner external unit, and the position of the fan blades 100 of the air conditioner external unit corresponds to the position of the condenser. The air conditioner external unit fan blade 100 can form negative pressure in a rotating process to drive air to flow to form air outlet airflow, the air outlet airflow can cool a condenser in an air cooling mode to take away heat of the condenser, normal operation of the condenser is guaranteed, and therefore the function of heating or refrigerating indoors by an air conditioner internal unit is achieved.
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 invention as defined in the appended claims.
Claims (10)
1. The air conditioner outdoor unit fan blade is characterized by comprising a hub (110) and blades (120), wherein the blades (120) are oppositely provided with an inner edge (123) and an outer edge (124), the inner edge (123) is fixedly connected to the peripheral surface of the hub (110), the blades (120) are also oppositely provided with a windward side (125) and a leeward side (126), the blades (120) are in a curved plate shape, and the blades (120) are firstly arranged towards the leeward side (126) in a concave mode and then arranged towards the windward side (125) in a concave mode in the direction from the inner edge (123) to the outer edge (124).
2. The fan blade for the outdoor unit of an air conditioner as claimed in claim 1, wherein the blade (120) is further provided with a leading edge (121) and a trailing edge (122) in an opposite manner, and the leading edge (121), the inner edge (123), the trailing edge (122) and the outer edge (124) are connected end to end.
3. The air conditioner outdoor unit fan blade as claimed in claim 2, wherein the angle of the depression of the middle of the blade (120) towards the leeward side (126) is smaller than the angle of the depression of the trailing edge (122) towards the leeward side (126), and the angle of the depression of the middle of the blade (120) towards the leeward side (126) is smaller than the angle of the depression of the leading edge (121) towards the leeward side (126).
4. The air conditioner outdoor unit fan blade as claimed in claim 2, wherein the angle of depression of the trailing edge (122) toward the windward side (125) is smaller than the angle of depression of the middle of the blade (120) toward the windward side (125), and the angle of depression of the middle of the blade (120) toward the windward side (125) is smaller than the angle of depression of the leading edge (121) toward the windward side (125).
5. The air conditioner outdoor unit fan blade according to claim 1, wherein the minimum angle range of the depression of the blade (120) toward the leeward side (126) is 160 to 170 degrees.
6. The air conditioner outdoor unit fan blade according to claim 5, wherein the minimum angle of depression of the blade (120) toward the leeward side (126) is 168 degrees.
7. The air conditioner outdoor unit fan blade according to claim 1, wherein the minimum angle range of the depression of the blade (120) toward the windward side (125) is 150 to 170 degrees.
8. The fan blade for an outdoor unit of an air conditioner according to claim 7, wherein the minimum angle of depression of the blade (120) toward the windward side (125) is 160 degrees.
9. The fan blade for the outdoor unit of the air conditioner, as claimed in claim 1, wherein a reinforcing rib (127) is disposed on the leeward side (126), and the reinforcing rib (127) is fixedly connected to the hub (110).
10. An air conditioner characterized by comprising the air conditioner external unit fan blade as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110974858.8A CN115717610A (en) | 2021-08-24 | 2021-08-24 | Outer quick-witted fan blade of air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110974858.8A CN115717610A (en) | 2021-08-24 | 2021-08-24 | Outer quick-witted fan blade of air conditioner and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115717610A true CN115717610A (en) | 2023-02-28 |
Family
ID=85253428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110974858.8A Pending CN115717610A (en) | 2021-08-24 | 2021-08-24 | Outer quick-witted fan blade of air conditioner and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115717610A (en) |
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2021
- 2021-08-24 CN CN202110974858.8A patent/CN115717610A/en active Pending
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