CN107061324B - Axial fan and air conditioner with same - Google Patents
Axial fan and air conditioner with same Download PDFInfo
- Publication number
- CN107061324B CN107061324B CN201710225041.4A CN201710225041A CN107061324B CN 107061324 B CN107061324 B CN 107061324B CN 201710225041 A CN201710225041 A CN 201710225041A CN 107061324 B CN107061324 B CN 107061324B
- Authority
- CN
- China
- Prior art keywords
- blades
- blade
- flow fan
- axial flow
- wind wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003068 static effect Effects 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 abstract description 19
- 230000001965 increasing effect Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/327—Rotors specially for elastic fluids for axial flow pumps for axial flow fans with non identical blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an axial flow fan and an air conditioner with the same, wherein the axial flow fan comprises: casing, movable wind wheel and motor. The casing has air intake and air outlet, moves the wind wheel and establishes in the casing, moves the wind wheel and includes interior wheel hub, outer wheel hub, a plurality of interior blades and a plurality of outer blade, interior wheel hub establishes in outer wheel hub and the interval sets up, a plurality of interior blades establish between the interior perisporium of interior wheel hub and outer wheel hub and set up along interior wheel hub's circumference interval, a plurality of outer blades establish on outer wheel hub's periphery wall and set up along outer wheel hub's circumference interval, the absolute value of the difference of the blade installation angle of interior blade and the blade installation angle of outer blade is no more than 5, the motor is established in the casing and the output shaft of motor links to each other with moving the wind wheel. The axial flow fan has the advantages of large air quantity and low noise.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an axial flow fan and an air conditioner with the same.
Background
In the related art, an axial flow fan of an air conditioner has small air quantity and large noise due to the limitation of the structure of the axial flow fan. Accordingly, improvements are needed.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides the axial flow fan which has the advantages of large air quantity and low noise.
The invention also provides an air conditioner with the axial flow fan.
An axial flow fan according to an embodiment of the first aspect of the present invention includes: the shell is provided with an air inlet and an air outlet; the movable wind wheel is arranged in the shell and comprises an inner hub, an outer hub, a plurality of inner blades and a plurality of outer blades, wherein the inner hub is arranged in the outer hub and is arranged at intervals, the plurality of inner blades are arranged between the inner hub and the inner peripheral wall of the outer hub and are arranged along the circumferential interval of the inner hub, the plurality of outer blades are arranged on the outer peripheral wall of the outer hub and are arranged along the circumferential interval of the outer hub, and the absolute value of the difference value between the blade mounting angle of the inner blades and the blade mounting angle of the outer blades is not more than 5 degrees; and the motor is arranged in the shell, and an output shaft of the motor is connected with the movable wind wheel.
According to the axial flow fan provided by the embodiment of the invention, the movable wind wheel is arranged to comprise the inner blades and the outer blades which are arranged inside and outside, so that the air quantity can be increased through the superposition effect of the inner blades and the outer blades when the axial flow fan works, and the arranged outer hub separates the inner blades from the outer blades and can play a role in disturbing air flow, so that noise can be reduced, and meanwhile, the difference value of the blade installation angles of the inner blades and the outer blades is limited within the range of 5 degrees, so that the rotation plane of the inner blades and the rotation plane of the outer blades are adjacent to each other, the superposition effect of the inner blades and the outer blades is further enhanced, and the air quantity can be further increased and the noise is reduced.
According to some embodiments of the invention, the blade mounting angle of the inner blade is the same as the blade mounting angle of the outer blade.
According to some embodiments of the invention, the number of inner lobes is an odd number and/or the number of outer lobes is an odd number.
According to some embodiments of the invention, the inner blade is arcuate plate-like and/or the outer blade is arcuate plate-like.
According to some embodiments of the invention, the axial flow fan further comprises: the static wind wheel is arranged in the shell and is positioned at one axial side of the movable wind wheel, the static wind wheel comprises a positioning ring and a plurality of static blades which are arranged on the peripheral wall of the positioning ring and are arranged along the circumferential direction of the positioning ring at intervals, and the motor is arranged in the positioning ring.
Further, the axial flow fan further includes: the motor pressing plate is arranged at the axial end, far away from the movable wind wheel, of the positioning ring, a through hole is formed in the motor pressing plate, a protrusion is arranged at one end, far away from the output shaft, of the motor, and the protrusion is matched in the through hole.
Optionally, the motor pressing plate is detachably connected with the positioning ring.
Optionally, at least a part of the motor pressing plate, which is located around the through hole, is in a hollow structure.
According to some embodiments of the invention, the dynamic wind wheel is disposed adjacent the air inlet and the static wind wheel is disposed adjacent the air outlet.
An air conditioner according to an embodiment of a second aspect of the present invention includes: an axial flow fan according to an embodiment of the above first aspect of the present invention.
According to the air conditioner provided by the embodiment of the invention, the air outlet quantity of the air conditioner can be increased and the working noise of the air conditioner can be reduced by arranging the axial flow fan.
Drawings
Fig. 1 is a perspective view of an axial flow fan according to an embodiment of the present invention;
fig. 2 is another angular perspective view of an axial flow fan according to an embodiment of the present invention;
fig. 3 is an exploded view of an axial flow fan according to an embodiment of the present invention;
fig. 4 is a front view of an axial flow fan according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a perspective view of a rotor of an axial flow fan according to an embodiment of the present invention;
FIG. 7 is a mating view of a static wind wheel and a casing of an axial flow fan according to an embodiment of the present invention;
fig. 8 is a perspective view of a motor of an axial flow fan according to an embodiment of the present invention;
fig. 9 is a perspective view of a motor pressing plate of an axial flow fan according to an embodiment of the present invention.
Reference numerals:
the axial flow fan 100,
a shell 1, an air duct 10, an air inlet 11 and an air outlet 12,
a movable wind wheel 2, an inner hub 21, a shaft hole 211, an outer hub 22, an inner blade 23, an outer blade 24,
the rotation of the motor 3, the output shaft 31, the protrusions 32,
the stator wind wheel 4, the positioning ring 41, the first fixing hole 411, the stator blades 42,
the motor pressing plate 5, the through hole 51, the second fixing hole 52 and the hollow structure 53.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
An axial flow fan 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 9.
As shown in fig. 1 to 9, an axial flow fan 100 according to an embodiment of the first aspect of the present invention includes: the motor comprises a shell 1, a movable wind wheel 2 and a motor 3.
Specifically, the casing 1 has an air inlet 11 and an air outlet 12, the casing 1 may be cylindrical with both ends open in the axial direction, the two axial open ends of the casing 1 are the air inlet 11 and the air outlet 12, respectively, and an air duct 10 suitable for air flow is formed in the casing 1 along the axial direction of the casing 1. The movable wind wheel 2 is arranged in the casing 1, and the central axis of the movable wind wheel 2 can be coincident with the central axis of the casing 1, so that the axial flow fan 100 has compact structure and more uniform air outlet. The motor 3 is arranged in the shell 1, an output shaft 31 of the motor 3 is connected with the movable wind wheel 2, a shaft hole 211 is arranged in the center of the inner hub 21, the output shaft 31 of the motor 3 is matched in the shaft hole 211 of the inner hub 21, and the motor 3 drives the movable wind wheel 2 to rotate. Therefore, when the movable wind wheel 2 rotates, air enters the air duct 10 through the air inlet 11, is pressurized and accelerated by the movable wind wheel 2, and flows out from the air outlet 12.
The rotor 2 includes an inner hub 21, an outer hub 22, a plurality of inner blades 23 and a plurality of outer blades 24, the inner hub 21 is disposed in the outer hub 22 and spaced apart, and the inner hub 21 and the outer hub 22 may be coaxially disposed. The plurality of inner blades 23 are disposed between the inner circumferential walls of the inner hub 21 and the outer hub 22 at intervals along the circumferential direction of the inner hub 21, and the plurality of inner blades 23 may be disposed at equal intervals or unequal intervals. One end of each inner blade 23 is connected to the outer circumferential wall of the inner hub 21 and the other end thereof is connected to the inner circumferential wall of the outer hub 22, thereby enabling connection between the inner hub 21 and the outer hub 22 through the plurality of inner blades 23, thereby not requiring additional provision of other connection structures, simplifying the structure of the axial flow fan 100, and increasing the overall strength of the blades. The plurality of outer blades 24 are provided on the outer circumferential wall of the outer hub 22 at intervals along the circumferential direction of the outer hub 22, and the plurality of outer blades 24 may be provided at equal intervals or at unequal intervals. One end of each outer blade 24 is connected to the outer peripheral wall of outer hub 22 and the other end thereof extends outwardly (the term "outwardly" refers to a direction away from the center of outer hub 22).
Of course, the inclination directions of the inner blade 23 and the outer blade 24 are identical. For example, both the inner vane 23 and the outer vane 24 deviate from the radial direction and are inclined toward the clockwise or counterclockwise direction.
Therefore, the movable wind wheel 2 is arranged into an inner-outer two-layer blade structure, the strength of the blades is ensured, the size of the air duct 10 can be increased, the air quantity can be increased through the superposition effect of the inner blades 23 and the outer blades 24 when the axial flow fan 100 works, and the inner blades 23 and the outer blades 24 are separated by the arranged outer hub 22, so that the disturbance effect on the air flow can be achieved, and the noise can be reduced.
Further, the absolute value of the difference between the blade mounting angle of the inner blade 23 and the blade mounting angle of the outer blade 24 is not more than 5 °. Thus, by setting the difference between the installation angle of the inner blade 23 and the installation angle of the outer blade 24 in a small range, the rotation plane of the inner blade 23 and the rotation plane of the outer blade 24 can be made closer to each other, the overlapping action of the inner blade 23 and the outer blade 24 can be further enhanced, and the air volume can be further increased and noise can be reduced.
The 'blade mounting angle' refers to the included angle between the rotation plane of the blade and the chord line of the cross section of the blade, which is cut by different cylindrical surfaces with the radius R and concentric with the cylindrical surface of the hub. Specifically, the blade mounting angle of the inner blade 23 is the angle between the rotation plane of the inner blade 23 and the chord line of the blade cross section taken through a different cylindrical surface of radius R concentric with the cylindrical surface of the inner hub 21, and the blade mounting angle of the outer blade 24 is the angle between the rotation plane of the outer blade 24 and the chord line of the blade cross section taken through a different cylindrical surface of radius R concentric with the cylindrical surface of the outer hub 22.
It should be noted that, the installation angle of the inner blade 23 may be larger than the installation angle of the outer blade 24, where the difference between the installation angle of the inner blade 23 and the installation angle of the outer blade 24 is a positive value, the difference between the installation angle of the inner blade 23 and the installation angle of the outer blade 24 is not more than 5 °, and the rotation plane of the inner blade 23 and the rotation plane of the outer blade 24 are adjacent to each other but do not coincide; the installation angle of the inner blade 23 may be smaller than the installation angle of the outer blade 24, in which case the difference between the blade installation angle of the inner blade 23 and the blade installation angle of the outer blade 24 is negative, and the absolute value of the difference between the blade installation angle of the inner blade 23 and the blade installation angle of the outer blade 24 is not more than 5 °, and the rotation planes of the inner blade 23 and the outer blade 24 are adjacent to each other but do not coincide; the mounting angle of the inner blade 23 may be equal to the mounting angle of the outer blade 24, in which case the difference between the blade mounting angle of the inner blade 23 and the blade mounting angle of the outer blade 24 is zero, and the rotation plane of the inner blade 23 and the rotation plane of the outer blade 24 coincide.
According to the axial flow fan 100 of the embodiment of the present invention, by arranging the movable wind wheel 2 to include the inner blades 23 and the outer blades 24 arranged inside and outside, thereby increasing the amount of wind by the superposition of the inner blades 23 and the outer blades 24 when the axial flow fan 100 is in operation, and since the arranged outer hub 22 spaces the inner blades 23 and the outer blades 24, the disturbance of the air flow can be effected, so that the noise can be reduced, while the difference in the blade installation angles of the inner blades 23 and the outer blades 24 is limited within the range of 5 °, the rotation plane of the inner blades 23 and the rotation plane of the outer blades 24 can be made to be more adjacent to each other, further enhancing the superposition of the inner blades 23 and the outer blades 24, and further increasing the amount of wind and reducing the noise.
In some embodiments of the present invention, the blade mounting angle of the inner blade 23 is the same as the blade mounting angle of the outer blade 24. Thus, when the axial flow fan 100 is operated, the rotation plane of the inner blade 23 and the rotation plane of the outer blade 24 overlap, and at this time, the superposition of the inner blade 23 and the outer blade 24 is maximized, so that the air volume can be remarkably increased and the noise can be reduced.
In some embodiments of the present invention, referring to fig. 4 and 5, the number of inner blades 23 is odd, and/or the number of outer blades 24 is odd. That is, only the number of the inner blades 23 may be set to be odd, only the number of the outer blades 24 may be set to be odd, or both the number of the inner blades 23 and the number of the outer blades 24 may be set to be odd at the same time. For example, inner blades 23 may comprise five pieces and outer blades 24 may comprise nine pieces. Thus, by setting the number of the inner blades 23 and/or the outer blades 24 to be odd, it is possible to reduce or avoid noise caused by resonance generated when the rotor 2 rotates, and thus it is possible to further reduce noise.
In some embodiments of the invention, referring to fig. 5, inner blades 23 may be arcuate plate-like and/or outer blades 24 may be arcuate plate-like. That is, only the inner blade 23 may be provided in an arc-shaped plate shape, only the outer blade 24 may be provided in an arc-shaped plate shape, or both the inner blade 23 and the outer blade 24 may be provided in an arc-shaped plate shape. Thus, the axial flow fan 100 can be aesthetically pleasing and has a large air volume and low noise.
In some embodiments of the present invention, referring to fig. 1 to 5 and 7, the axial flow fan 100 further includes: the static wind wheel 4 is arranged in the shell 1 and is positioned at one axial side of the movable wind wheel 2, namely the movable wind wheel 2 and the static wind wheel 4 are axially arranged in the air duct 10 at intervals. The stator wind wheel 4 includes a positioning ring 41 and a plurality of stator blades 42 arranged on the outer peripheral wall of the positioning ring 41 and arranged at intervals along the circumferential direction of the positioning ring 41, the motor 3 is arranged in the positioning ring 41, and the motor 3 can be fixed in the positioning ring 41 through interference fit with the positioning ring 41. Thus, the static pressure of the axial flow fan 100 can be increased by the provision of the static wind wheel 4, and the air volume can be further increased.
Wherein, one end of each stator blade 42 is connected with the outer peripheral wall of the positioning ring 41 and the other end thereof is connected with the inner peripheral wall of the positioning ring 41, thereby enabling connection between the positioning ring 41 and the casing 1 through a plurality of stator blades 42, thereby not needing to additionally provide other connection structures, simplifying the structure of the axial flow fan 100, and increasing the overall strength of the casing 1 and the stator blade wind wheel.
The direction of inclination of the stator blades 42 of the stator 4 is different from the direction of inclination of the outer blades 24 and the inner blades 23 of the rotor 2. For example, when the outer blades 24 and the inner blades 23 of the rotor 2 are inclined in the clockwise direction while being deviated from the radial direction, the stator blades 42 of the stator 4 are inclined in the counterclockwise direction while being deviated from the radial direction.
Alternatively, the dynamic wind wheel 2 may be disposed adjacent to the air inlet 11 and the static wind wheel 4 may be disposed adjacent to the air outlet 12. Therefore, when the axial flow fan 100 works, air enters the air duct 10 from the air inlet 11, is accelerated and pressurized by the dynamic wind wheel 2, and then further increases static pressure through the static wind wheel 4, so that the air quantity can be further increased.
Further, referring to fig. 2, 3, 5, and 7 to 9, the axial flow fan 100 further includes: the motor clamp plate 5, motor clamp plate 5 lid is established and is equipped with through-hole 51 on keeping away from the axial end of moving wind wheel 2 and motor clamp plate 5 of holding ring 41, and the one end of keeping away from output shaft 31 of motor 3 is equipped with protruding 32, and protruding 32 cooperates in through-hole 51, and protruding 32's terminal surface towards motor clamp plate 5 can be with motor clamp plate 5's outer terminal surface (the outer terminal surface of motor clamp plate 5 "means the terminal surface of motor clamp plate 5 that is kept away from motor 3 one side) parallel and level. Therefore, the motor 3 can be further limited in the space defined by the motor pressing plate 5 and the positioning ring 41 by arranging the motor pressing plate 5, so that the motor 3 can be more firmly installed in the positioning ring 41, and meanwhile, the stability and the firmness of the installation of the motor 3 can be further increased by matching the protrusions 32 on the motor 3 with the through holes 51 on the motor pressing plate 5.
Alternatively, referring to fig. 2, 3, 7 and 8, the motor platen 5 is detachably connected to the positioning ring 41. Thereby, the mounting and dismounting of the motor 3 are facilitated. For example, when the motor 3 needs to be replaced, the motor platen 5 may be removed, a new motor 3 may be installed into the retaining ring 41, and the motor platen 5 may be attached to the retaining ring 41.
For example, in the examples of fig. 2, 3, 7 and 9, the positioning ring 41 is provided with a plurality of first fixing holes 411, and the motor pressing plate 5 is provided with a plurality of second fixing holes 52, and screws pass through the second fixing holes 52 and penetrate the corresponding first fixing holes 411, so that the motor pressing plate 5 can be fixedly connected to the positioning ring 41.
Optionally, referring to fig. 2, 3 and 9, at least a portion of the motor platen 5 located around the through hole 51 is a hollowed-out structure 53. For example, a part of the motor pressing plate 5 located around the through hole 51 may be a hollow structure 53, or all parts of the motor pressing plate 5 located around the through hole 51 may be hollow structures 53. Therefore, the strength of the motor pressing plate 5 can be ensured, the weight of the motor pressing plate 5 is reduced, and materials and cost are saved.
The beneficial technical effects of the present invention can be embodied by the following test data, wherein the following table 1 is a test data table of a conventional axial flow fan, and the following table 2 is a test data table of the axial flow fan of the present invention (the blade mounting angle of the inner blade 23 and the blade mounting angle of the outer blade 24 of the axial flow fan 100 in the test are the same, the inner blade 23 and the outer blade 24 are both arc-shaped plates, the inner blade 23 is five, and the outer blade 24 is nine)
TABLE 1
| Rotating speed (r/min) | Noise value (dB) | Air volume (m) 3 /h) | Power (kW) |
| 850 | 50 | 1277 | 51.9 |
| 800 | 48.1 | 1193 | 44.6 |
| 780 | 47.4 | 1161 | 41.8 |
| 770 | 47 | 1145 | 39.6 |
| 750 | 46.3 | 1103 | 37 |
| 700 | 44.2 | 1032 | 31.3 |
TABLE 2
As can be seen from the comparison between the above tables 1 and 2, the noise value of the axial flow fan 100 of the present invention is reduced, the air volume is increased, and the power is smaller than that of the conventional axial flow fan under the condition that the rotational speeds are the same.
An air conditioner according to an embodiment of a second aspect of the present invention includes: the axial flow fan 100 according to the above-described first aspect embodiment of the present invention.
According to the air conditioner of the embodiment of the invention, by arranging the axial flow fan 100, the air outlet quantity of the air conditioner can be increased, and the working noise of the air conditioner can be reduced.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. An axial flow fan, comprising:
the shell is provided with an air inlet and an air outlet;
the movable wind wheel is arranged in the shell and comprises an inner hub, an outer hub, a plurality of inner blades and a plurality of outer blades, wherein the inner hub is arranged in the outer hub and is arranged at intervals, the plurality of inner blades are arranged between the inner hub and the inner peripheral wall of the outer hub and are arranged along the circumferential interval of the inner hub, the plurality of outer blades are arranged on the outer peripheral wall of the outer hub and are arranged along the circumferential interval of the outer hub, and the absolute value of the difference value between the blade mounting angle of the inner blades and the blade mounting angle of the outer blades is not more than 5 degrees;
the static wind wheel is arranged in the shell and is positioned at one axial side of the movable wind wheel, the static wind wheel comprises a positioning ring and a plurality of static blades which are arranged on the peripheral wall of the positioning ring and are arranged at intervals along the circumferential direction of the positioning ring, the inclination direction of the static blades is different from that of the outer blades and the inner blades, and through holes are formed on the side wall of the positioning ring;
the motor is arranged in the positioning ring, and an output shaft of the motor is connected with the movable wind wheel.
2. The axial flow fan according to claim 1, wherein a blade mounting angle of the inner blade and a blade mounting angle of the outer blade are the same.
3. The axial flow fan according to claim 1, wherein the number of the inner blades is an odd number and/or the number of the outer blades is an odd number.
4. The axial flow fan according to claim 1, wherein the inner blade is arc-shaped plate-like and/or the outer blade is arc-shaped plate-like.
5. The axial flow fan according to claim 1, further comprising: the motor pressing plate is arranged at the axial end, far away from the movable wind wheel, of the positioning ring, a through hole is formed in the motor pressing plate, a protrusion is arranged at one end, far away from the output shaft, of the motor, and the protrusion is matched in the through hole.
6. The axial flow fan of claim 5, wherein the motor platen is detachably connected to the retaining ring.
7. The axial flow fan of claim 5, wherein at least a portion of the motor platen located around the through hole is in a hollowed-out structure.
8. The axial flow fan of claim 1, wherein the moving wind wheel is disposed adjacent the air inlet and the static wind wheel is disposed adjacent the air outlet.
9. An air conditioner, comprising: the axial flow fan according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710225041.4A CN107061324B (en) | 2017-04-07 | 2017-04-07 | Axial fan and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710225041.4A CN107061324B (en) | 2017-04-07 | 2017-04-07 | Axial fan and air conditioner with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061324A CN107061324A (en) | 2017-08-18 |
| CN107061324B true CN107061324B (en) | 2023-12-01 |
Family
ID=59601553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710225041.4A Active CN107061324B (en) | 2017-04-07 | 2017-04-07 | Axial fan and air conditioner with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061324B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323329A (en) * | 2018-10-11 | 2019-02-12 | 珠海格力电器股份有限公司 | A kind of air conditioner and its control method with double through-flow fan blade |
| CN112128124A (en) * | 2020-09-28 | 2020-12-25 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Air-cooled heat dissipation axial flow cooling fan for electronic equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009127461A (en) * | 2007-11-21 | 2009-06-11 | Panasonic Electric Works Co Ltd | Electric fan |
| CN202360455U (en) * | 2011-12-08 | 2012-08-01 | 陈国荣 | Double-layered fan impeller |
| JP2013160137A (en) * | 2012-02-06 | 2013-08-19 | Panasonic Corp | Electric fan |
| CN103363588A (en) * | 2013-05-31 | 2013-10-23 | 广东美的电器股份有限公司 | Indoor unit of air conditioner |
| CN204419627U (en) * | 2015-01-13 | 2015-06-24 | 浙江聚英风机工业有限公司 | A kind of axial-flow blower |
| CN204900343U (en) * | 2015-07-31 | 2015-12-23 | 广东美的制冷设备有限公司 | Machine in axial fan and air conditioning |
| CN205225780U (en) * | 2015-09-14 | 2016-05-11 | 瑞恩·迈克·兰德 | Air -out end is equipped with air purifier of diffuser |
| CN206626004U (en) * | 2017-04-07 | 2017-11-10 | 广东美的制冷设备有限公司 | Axial flow blower and there is its air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI526621B (en) * | 2012-09-18 | 2016-03-21 | 台達電子工業股份有限公司 | Fan |
-
2017
- 2017-04-07 CN CN201710225041.4A patent/CN107061324B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009127461A (en) * | 2007-11-21 | 2009-06-11 | Panasonic Electric Works Co Ltd | Electric fan |
| CN202360455U (en) * | 2011-12-08 | 2012-08-01 | 陈国荣 | Double-layered fan impeller |
| JP2013160137A (en) * | 2012-02-06 | 2013-08-19 | Panasonic Corp | Electric fan |
| CN103363588A (en) * | 2013-05-31 | 2013-10-23 | 广东美的电器股份有限公司 | Indoor unit of air conditioner |
| CN204419627U (en) * | 2015-01-13 | 2015-06-24 | 浙江聚英风机工业有限公司 | A kind of axial-flow blower |
| CN204900343U (en) * | 2015-07-31 | 2015-12-23 | 广东美的制冷设备有限公司 | Machine in axial fan and air conditioning |
| CN205225780U (en) * | 2015-09-14 | 2016-05-11 | 瑞恩·迈克·兰德 | Air -out end is equipped with air purifier of diffuser |
| CN206626004U (en) * | 2017-04-07 | 2017-11-10 | 广东美的制冷设备有限公司 | Axial flow blower and there is its air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107061324A (en) | 2017-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9017011B2 (en) | Furnace air handler blower with enlarged backward curved impeller and associated method of use | |
| AU2011282138B2 (en) | Blower assembly with motor integrated into the impeller fan and blower housing constructions | |
| US8197198B2 (en) | Fan system | |
| US9267505B2 (en) | Counter-rotating axial flow fan | |
| US20130084173A1 (en) | Centrifugal fan | |
| CN103452869B (en) | The centrifugal fan of tool axial flow wind direction | |
| CN107061324B (en) | Axial fan and air conditioner with same | |
| US2976352A (en) | Blower unit | |
| CN110793102A (en) | Air port noise reduction device, air duct, air conditioner indoor unit and air conditioner | |
| CN116146530A (en) | Impeller, fan and electronic equipment | |
| WO2018139070A1 (en) | Liquid sealing type vacuum pump | |
| CN103967833A (en) | Compound impeller and air blowing device with same | |
| CN109915411B (en) | Axial fan and air conditioner with same | |
| CN206626004U (en) | Axial flow blower and there is its air conditioner | |
| CN116783394B (en) | Axial fan and air conditioner | |
| EP1847716B1 (en) | Axial flow blower | |
| WO2022227477A1 (en) | Vertical air conditioner | |
| CN210118279U (en) | Fan blade, fan assembly, air duct component and air conditioner | |
| CN113280403B (en) | Fan and air conditioner | |
| CN211880254U (en) | Rotor structure and motor structure | |
| CN211530940U (en) | Rotor assembly and motor | |
| CN108649733B (en) | Motor with a motor housing | |
| CN109707644B (en) | Axial flow motor and air treatment device with same | |
| CN218678657U (en) | Hollow cup type high-speed motor with high concentricity | |
| CN209943207U (en) | Fan stationary blade and fan assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |