CN107654420B - Air conditioner, axial flow fan and air duct thereof - Google Patents
Air conditioner, axial flow fan and air duct thereof Download PDFInfo
- Publication number
- CN107654420B CN107654420B CN201711041065.0A CN201711041065A CN107654420B CN 107654420 B CN107654420 B CN 107654420B CN 201711041065 A CN201711041065 A CN 201711041065A CN 107654420 B CN107654420 B CN 107654420B
- Authority
- CN
- China
- Prior art keywords
- air
- pressing plate
- air duct
- flow fan
- axial flow
- 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
- 238000003825 pressing Methods 0.000 claims abstract description 82
- 230000008859 change Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
-
- 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
Abstract
The invention provides an axial flow fan, an air duct and an air conditioner thereof, wherein the air duct comprises: the body comprises an inner ring, a cylindrical shell and a plurality of blades, the shell is sleeved outside the inner ring, the blades are positioned between the inner ring and the shell and connected with the inner ring and the shell, and the blades are matched with the inner ring and the shell to define an air outlet; the front pressing plate is arranged at the air outlet and is provided with a front edge and a rear edge along the flowing direction of the air flow, and the rear edge extends obliquely towards the direction close to the air supply outlet of the air conditioner. According to the air duct of the axial flow fan, the front pressing plate is arranged at the air outlet, the front pressing plate is used for pressing the air outlet forwards in the stage of the air duct, the air outlet right in front is finally ensured, the phenomenon that the air flows upwards is avoided, and therefore the air outlet comfortableness of the air conditioner is improved; and the structure is simple, the implementation is easy, and the popularization is suitable.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air duct of an axial flow fan, the axial flow fan and an air conditioner.
Background
At present, the existing indoor unit of an air conditioner, particularly a cabinet machine, generally adopts a centrifugal fan or a cross-flow fan as an air supply structure, but with continuous deep design on the aspects of air conditioner performance, structure and the like and gradual improvement on product quality requirements, an axial flow fan enters the sight of research and development personnel with the advantages of high efficiency, large air quantity and the like. However, it is found through practice that when the axial flow fan is applied to the cabinet air conditioner, the air outlet flow cannot be guided to the right front, and the phenomenon that the air flows upwards occurs, which affects the air supply comfort of the cabinet air conditioner.
Disclosure of Invention
In order to solve at least one of the above problems, an object of the present invention is to provide an air duct of an axial flow fan.
Another object of the present invention is to provide an axial flow fan including the above air duct.
It is still another object of the present invention to provide an air conditioner including the axial flow fan.
In order to achieve the above object, a first aspect of the present invention provides an air duct of an axial flow fan, for an air conditioner, including: the body comprises an inner ring, a cylindrical shell and a plurality of blades, wherein the shell is sleeved on the outer side of the inner ring, the blades are positioned between the inner ring and the shell and connected with the inner ring and the shell, and the blades are matched with the inner ring and the shell to define an air outlet; the front pressing plate is arranged at the air outlet and is provided with a front edge and a rear edge along the flowing direction of the air flow, and the rear edge obliquely extends towards the direction close to the air supply outlet of the air conditioner.
According to the air duct of the axial flow fan, the front pressing plate is arranged at the air outlet, the front pressing plate is used for pressing the air outlet forwards in the stage of the air duct, the air outlet right in front is finally ensured, the phenomenon that the air flows upwards is avoided, and therefore the air outlet comfort of the air conditioner is improved; and the structure is simple, the implementation is easy, and the popularization is suitable.
Specifically, the skilled person of the company, after many experiments and studies, found that: in the prior art, when the air flow passes through the air duct of the axial flow fan, the air flow upwards flows along the axial direction of the air duct, and then turns to flow out when reaching the air supply outlet of the air conditioner, and the air flow cannot turn to completely when reaching the air supply outlet due to the large upward flow speed of the air flow sent out by the air duct, so that the phenomenon of upward floating of the air occurs; based on this, this application has add the front bezel in axial fan's wind channel air outlet department, utilizes the front bezel to change the shape in wind channel, and then improves the velocity of flow and the flow direction of air current to reach the purpose of guaranteeing the air-out in the dead ahead. Specifically, when the air conditioner works, air flow moves upwards along the air duct of the axial flow fan, and flows along the front edge of the front pressing plate to the rear edge when reaching the front pressing plate at the air outlet, and the rear edge of the front pressing plate obliquely extends towards the direction close to the air outlet, so that a certain guiding effect and a drainage effect are achieved on the air flow, the component speed of the air flow in the vertical direction is properly reduced, and the air flow has a certain horizontal component speed.
It should be noted that, in the present application, the front-rear direction of the "front edge" and the "rear edge" of the front platen are defined according to the flow direction of the air flow, that is: upstream is the leading edge and downstream is the trailing edge, but there is no necessarily linking up, down, left, right, front and back in the actual orientation.
In addition, the air duct of the axial flow fan in the technical scheme provided by the invention can also have the following additional technical characteristics:
in the above technical scheme, the front pressing plate is arranged at one side of the air outlet close to the air supply outlet.
After many experiments and studies, the technicians of the company find that: the air flow sent out from one side of the air outlet close to the air supply outlet is turned to flow out under the action of the air deflector when reaching the air supply outlet, however, even air outlet is difficult to realize by the air deflector only, so that part of the air flow can float upwards, and the phenomenon that the air floats upwards is generated; the air flow sent out from one side of the air outlet far away from the air supply outlet can upwards reach the top plate of the air conditioner, and then is turned to be blown out from the air supply outlet under the action of the top plate. Therefore, the phenomenon that wind upwards floats can be effectively improved by arranging the front pressing plate on one side of the air outlet close to the air supply outlet, and the structure of the air duct is simplified, so that the cost is saved.
In the above technical solution, the front edge is connected with an outer wall surface of the inner ring.
The front edge of the front pressing plate is connected with the outer wall surface of the inner ring, and the air channel only forms a special-shaped air channel structure at the outlet close to one side of the air supply outlet, so that the air flow at the side is guided and drained when flowing out of the air channel, and then the air is vertically guided out from the air supply outlet, the cabinet air conditioner is ensured to be capable of positively discharging air, and adverse effects of turbulence of the air flow or overlarge wind resistance and the like caused by overlarge structural change of the air channel due to irregular position of the front pressing plate are avoided.
In the above technical solution, the front edge is smoothly connected with the outer wall surface of the inner ring.
The front edge of the front pressing plate is smoothly connected with the outer wall surface of the inner ring (namely, arc transitional connection), so that the structural continuity of the whole air channel in the axial direction can be improved, the problem of overlarge air flow resistance caused by overlarge gradient of the axial size change of the whole air channel is avoided, and the purposes of reducing the kinetic energy loss of air flow and reducing the air flow noise are realized.
In any of the above embodiments, the trailing edge is flush with the air outlet.
The rear edge of the front pressing plate is level with the air outlet of the air duct, so that air flow can be directly separated from the air duct after flowing through the front pressing plate, thereby reducing the turbulence influence on the back pressure side of the front pressing plate, further reducing the kinetic energy loss of the air flow and further reducing the air flow noise.
In any of the above technical solutions, the longitudinal section of the front pressing plate is an arc surface, and the arc surface protrudes toward the axial direction close to the air duct.
The longitudinal section of the front pressing plate is an arc surface, so that the plate surface of the front pressing plate is also an arc surface along the axial direction of the air duct, and the air flow can flow stably against the front pressing plate; because the cambered surface is protruded towards the axial direction close to the air duct, namely: the slope of the outer convex surface of the front pressing plate gradually decreases along the front edge of the front pressing plate, so that when the air flow flows along the front pressing plate, the partial speed of the air flow in the axial direction is gradually consumed, and the partial speed of the air flow in the radial direction is gradually increased, thereby optimizing the guiding function of the front pressing plate, facilitating the air flow to smoothly turn at the air supply outlet and further guiding out along the direction perpendicular to the air supply outlet.
In any of the above technical solutions, the blade includes a main body and a protrusion, where the main body has a concave pressure surface and a convex suction surface, and the protrusion is connected to a rear end of the main body and protrudes toward the pressure surface; wherein the front edge is flush with the front end of the projection.
The blade comprises a main body and a protruding part, the protruding part protrudes towards the pressure surface side of the main body, a convergence structure can be formed in front of an air outlet of the air duct, gathering of air flow can be achieved, and air quantity loss is reduced; the front edge of the front pressing plate is flush with the front end of the protruding part, so that the front pressing plate can be matched with the protruding part, and meanwhile, the flow direction of the air flow is corrected, which is equivalent to that the shape of the air channel at the air outlet is changed once, and the situation that the air flow loss is overlarge due to the continuous change of the shape of the air channel is avoided.
In any of the above technical solutions, two ends of the front pressing plate, which are opposite to each other along the circumferential direction of the air duct, are fixedly connected with two blades.
The two ends that the front clamp plate set up along wind channel circumference direction relatively are connected with two blade fixed, then the both ends of front clamp plate have extended to two blades on, this has avoided the tip of front clamp plate to have the clearance to lead to near the circumstances emergence that produces the air current disorder between the blade to avoided leading to the condition emergence such as air conditioner noise increase because of addding the front clamp plate.
In any of the above technical solutions, a width of a projection of the front platen on the cross section of the air duct along a radial direction of the air duct is in a range of 5cm-12 cm.
The width of the projection of the front pressing plate on the cross section of the air duct along the radial direction of the air duct is controlled within the range of 5cm-12cm, so that the situation that the air guiding effect is not obvious due to the fact that the front pressing plate is too narrow is avoided, and the situation that the air outlet of the fan is greatly blocked and the air outlet of the axial flow fan is seriously affected due to the fact that the front pressing plate is too wide is avoided.
In any of the above technical solutions, the front platen and the body are of an integral structure.
The front pressing plate and the body are of an integrated structure, so that on one hand, the connection strength of the front pressing plate and the body is improved, and further, the use reliability of the air duct is improved; on the other hand, the two can be integrally formed, so that the production efficiency can be improved, and the production period can be shortened; meanwhile, one assembly process can be reduced, so that the assembly efficiency is improved.
In any of the above technical solutions, the front platen and the body are of a split structure.
The front pressing plate and the body are of split type structures, namely, the front pressing plate and the body are separately and independently molded, and then the front pressing plate is mounted at the corresponding position on the body, so that the structures of the front pressing plate and the body are simplified, the die structures of the front pressing plate and the body are further simplified, the front pressing plate and the body are convenient to machine and mold, and the front pressing plate and the body are convenient to maintain and replace.
The technical solution of the second aspect of the present invention provides an axial flow fan, including: the air duct of the axial flow fan according to any one of the first aspect; and the wind wheel is arranged in the air duct.
The axial flow fan provided by the technical scheme of the second aspect of the present invention includes the air duct according to any one of the technical schemes of the first aspect, so that the axial flow fan has all the advantages of any one of the technical schemes, and is not described herein.
The technical solution of the third aspect of the present invention provides an air conditioner, including: the machine body is provided with an air supply outlet; and the axial flow fan according to the technical scheme of the second aspect is installed in the machine body, an air duct of the axial flow fan is communicated with the air supply opening, and the axis of the air duct is perpendicular to the axis of the air supply opening.
The air conditioner provided by the third aspect of the present invention includes the axial flow fan according to any one of the second aspect, so that the air conditioner has all the advantages of any one of the above technical aspects, and will not be described herein.
In the above technical scheme, the air conditioner is an axial flow cabinet machine, in particular an axial flow cylindrical cabinet machine.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic perspective view of a duct according to some embodiments of the present invention at a first view;
FIG. 2 is a schematic front view of the duct of FIG. 1;
FIG. 3 is a schematic rear view of the air duct of FIG. 1;
FIG. 4 is a schematic left-hand view of the air duct of FIG. 1;
FIG. 5 is a schematic right-side view of the air duct of FIG. 1;
FIG. 6 is a schematic top view of the air duct of FIG. 1;
FIG. 7 is a schematic bottom view of the air duct of FIG. 1;
FIG. 8 is a schematic perspective view of the air duct of FIG. 1 from a second perspective;
FIG. 9 is a schematic perspective view of the third view of the air duct of FIG. 1;
FIG. 10 is a schematic perspective view of the fourth view of the air duct of FIG. 1;
FIG. 11 is a schematic perspective view of the fifth view of the air duct of FIG. 1;
fig. 12 is a schematic perspective view of a sixth view of the air duct shown in fig. 1.
Wherein, the correspondence between the reference numerals and the component names in fig. 1 to 12 is:
10 inner rings, 20 outer shells, 30 blades, 31 main bodies, 32 protruding parts, 40 front pressing plates and 50 air outlets.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
An air duct of an axial flow fan, and an air conditioner according to some embodiments of the present invention are described below with reference to fig. 1 to 12.
As shown in fig. 1 to 12, an embodiment of a first aspect of the present invention provides an air duct of an axial flow fan for an air conditioner, including: a body and a front platen 40.
Specifically, the body includes an inner ring 10, a cylindrical outer shell 20, and a plurality of blades 30, as shown in fig. 1, the outer shell 20 is sleeved outside the inner ring 10, the plurality of blades 30 are located between the inner ring 10 and the outer shell 20 and connected with the inner ring 10 and the outer shell 20, and the plurality of blades 30 cooperate with the inner ring 10 and the outer shell 20 to define an air outlet 50; the front platen 40 is disposed at the air outlet 50, and along the flow direction of the air flow, the front platen 40 has a front edge and a rear edge, and the rear edge extends obliquely in a direction approaching the air outlet of the air conditioner.
According to the air duct of the axial flow fan provided by the embodiment of the first aspect of the invention, the front pressing plate 40 is arranged at the air outlet 50, the front pressing plate 40 is utilized to press the air outlet forwards in the stage of the air duct, the air outlet right in front is finally ensured, the phenomenon that the air flows upwards is avoided, and therefore the air outlet comfort of the air conditioner is improved; and the structure is simple, the implementation is easy, and the popularization is suitable.
Specifically, the skilled person of the company, after many experiments and studies, found that: in the prior art, when the air flow passes through the air duct of the axial flow fan, the air flow upwards flows along the axial direction of the air duct, and then turns to flow out when reaching the air supply outlet of the air conditioner, and the air flow cannot turn to completely when reaching the air supply outlet due to the large upward flow speed of the air flow sent out by the air duct, so that the phenomenon of upward floating of the air occurs; based on this, this application has add front clamp plate 40 in axial fan's wind channel air outlet 50 department, utilizes front clamp plate 40 to change the shape in wind channel, and then improves the velocity of flow and the flow direction of air current to reach the purpose of guaranteeing the air-out in dead ahead. Specifically, when the air conditioner works, the air flow moves upwards along the air duct of the axial flow fan, and flows along the front edge of the front pressing plate 40 to the rear edge when reaching the front pressing plate 40 at the air outlet 50, and the rear edge of the front pressing plate 40 obliquely extends towards the direction close to the air outlet, so that a certain guiding effect and a drainage effect are achieved on the air flow, the component speed of the air flow in the vertical direction is properly reduced, and the air flow has a certain horizontal component speed.
Further, the front platen 40 is disposed at a side of the air outlet 50 near the air supply port, as shown in fig. 1, 2, 3, 10, 11 and 12.
After many experiments and studies, the technicians of the company find that: the air flow sent out by one side of the air outlet 50 close to the air supply outlet is turned to flow out under the action of the air deflector when reaching the air supply outlet, however, even air outlet is difficult to realize by the air deflector only, so that part of the air flow can float upwards, and the phenomenon that the air floats upwards is generated; the air flow sent out from one side of the air outlet 50 away from the air outlet will reach the top plate of the air conditioner upwards, and then is turned under the action of the top plate to be blown out from the air outlet. Therefore, the phenomenon that the wind flows upwards can be effectively improved by arranging the front pressing plate 40 on one side of the air outlet 50 close to the air supply outlet, and the structure of the air duct is simplified, so that the cost is saved.
Further, the leading edge is connected to the outer wall surface of the inner ring 10 as shown in fig. 1, 2, 3, 10, 11 and 12.
The front edge of the front pressing plate 40 is connected with the outer wall surface of the inner ring 10, and the air duct forms a special-shaped air duct structure only at the outlet close to one side of the air supply outlet, so that the air flow at the side is guided and drained when flowing out of the air duct, and then is guided out vertically from the air supply outlet, the cabinet air conditioner is ensured to be capable of outputting air positively, and adverse effects of turbulence of the air flow or overlarge wind resistance and the like caused by overlarge structural change of the air duct due to irregular position of the front pressing plate 40 are avoided.
Preferably, the leading edge is smoothly connected to the outer wall surface of the inner ring 10 as shown in fig. 1, 10, 11 and 12.
The front edge of the front pressing plate 40 is smoothly connected (i.e. arc transitional connection) with the outer wall surface of the inner ring 10, so that the structural continuity of the whole air duct in the axial direction can be improved, the problem of overlarge air flow resistance caused by overlarge gradient of the axial dimension change of the whole air duct is avoided, and the purposes of reducing the kinetic energy loss of air flow and reducing the air flow noise are realized.
Preferably, the trailing edge is flush with the air outlet 50, as shown in fig. 1, 10, 11 and 12.
The rear edge of the front platen 40 is flush with the air outlet 50 of the air duct, so that the air flow can be directly separated from the air duct after flowing through the front platen 40, thereby reducing the turbulence influence on the back pressure side of the front platen 40, further reducing the kinetic energy loss of the air flow and further reducing the air flow noise.
Further, the longitudinal section of the front platen 40 is an arc surface, which protrudes toward the axial direction near the air duct, as shown in fig. 1, 10, 11 and 12.
The longitudinal section of the front pressing plate 40 is an arc surface, so that the plate surface of the front pressing plate 40 is also an arc surface along the axial direction of the air duct, which is convenient for the air flow to smoothly flow against the front pressing plate 40; because the cambered surface is protruded towards the axial direction close to the air duct, namely: the slope of the outer convex surface of the front platen 40 gradually decreases along the front edge of the front platen 40 toward the rear edge, so that the partial velocity of the air flow in the axial direction is gradually consumed while the partial velocity in the radial direction is gradually increased when the air flow flows along the front platen 40, thereby optimizing the guiding function of the front platen 40, facilitating the smooth turning of the air flow at the air supply port and guiding the air flow along the direction perpendicular to the air supply port.
Further, the blade 30 includes a main body 31 and a convex portion 32, as shown in fig. 1, the main body 31 having a concave pressure surface and a convex suction surface, the convex portion 32 being connected to the rear end of the main body 31 and protruding toward the pressure surface side; wherein the leading edge is flush with the front end of the projection 32 as shown in fig. 1, 10, 11 and 12.
The blade 30 comprises a main body 31 and a protruding part 32, the protruding part 32 protrudes towards the pressure surface side of the main body 31, a convergence structure can be formed in front of the air outlet 50 of the air duct, the gathering of air flow can be realized, and the air loss is reduced; the front edge of the front pressing plate 40 is flush with the front end of the protruding portion 32, so that the front pressing plate 40 can be matched with the protruding portion 32, and meanwhile, the flow direction of the air flow is corrected, which is equivalent to that the shape of the air duct at the air outlet 50 is changed once, and the situation that the air flow loss is overlarge due to continuous change of the shape of the air duct is avoided.
Further, both ends of the front pressure plate 40, which are disposed opposite to each other in the circumferential direction of the air duct, are fixedly connected to the two blades 30, as shown in fig. 1, 10, 11 and 12.
Two ends of the front pressing plate 40, which are oppositely arranged along the circumferential direction of the air duct, are fixedly connected with the two blades 30, so that two ends of the front pressing plate 40 extend to the two blades 30, and the situation that air flow is disturbed near the gap due to the fact that the gap is formed between the end of the front pressing plate 40 and the blades 30 is avoided, and the situation that the noise of an air conditioner is increased due to the fact that the front pressing plate 40 is additionally arranged is avoided.
Preferably, the width of the projection of the front platen 40 on the air duct cross section in the radial direction of the air duct is in the range of 5cm-12 cm.
The width of the projection of the front pressing plate 40 on the cross section of the air duct along the radial direction of the air duct is controlled within the range of 5cm-12cm, so that the situation that the air guiding effect is not obvious due to the fact that the front pressing plate 40 is too narrow is avoided, and the situation that the air outlet 50 of the fan is greatly shielded and the air outlet of the axial flow fan is seriously affected due to the fact that the front pressing plate 40 is too wide is avoided.
Alternatively, the front platen 40 is of unitary construction with the body.
The front pressing plate 40 and the body are of an integrated structure, so that on one hand, the connection strength of the front pressing plate and the body is improved, and further, the use reliability of the air duct is improved; on the other hand, the two can be integrally formed, so that the production efficiency can be improved, and the production period can be shortened; meanwhile, one assembly process can be reduced, so that the assembly efficiency is improved.
Alternatively, the front platen 40 is of a split construction with the body.
The front pressing plate 40 and the body are of a split structure, namely, the front pressing plate 40 and the body are separately and independently molded, and then the front pressing plate 40 is mounted at the corresponding position on the body, so that the structures of the front pressing plate 40 and the body are simplified, the die structures of the front pressing plate 40 and the body are further simplified, the front pressing plate 40 and the body are convenient to machine and mold, and the front pressing plate 40 and the body are convenient to maintain and replace.
An embodiment of the second aspect of the present invention provides an axial flow fan (not shown in the drawings), comprising: the wind tunnel and wind wheel of the axial flow fan according to any one of the embodiments of the first aspect are installed in the wind tunnel.
The axial flow fan provided by the embodiment of the second aspect of the present invention includes the air duct of any one of the embodiments of the first aspect, so that the axial flow fan has all the advantages of any one of the embodiments described above, and will not be described herein.
An embodiment of a third aspect of the present invention provides an air conditioner (not shown in the drawings), comprising: a housing and an axial flow fan as in the embodiment of the second aspect.
Specifically, the machine body is provided with an air supply outlet; the axial flow fan is arranged in the machine body, an air duct of the axial flow fan is communicated with the air supply outlet, and the axis of the air duct is perpendicular to the axis of the air supply outlet.
The air conditioner provided by the embodiment of the third aspect of the present invention includes the axial flow fan according to any one of the embodiments of the second aspect, so that the air conditioner has all the advantages of any one of the embodiments described above, and will not be described herein.
In the above embodiment, the air conditioner is an axial flow cabinet machine, specifically an axial flow cylindrical cabinet machine.
In summary, the air duct of the axial flow fan provided by the invention has the advantages that the front pressing plate is arranged at the air outlet, the front pressing plate is utilized to press the air outlet forwards in the stage of the air duct, and finally, the air outlet in front is ensured, the phenomenon that the air flows upwards is avoided, and the air outlet comfort of the air conditioner is improved; and the structure is simple, the implementation is easy, and the popularization is suitable.
In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined 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 connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. 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.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean 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 do not necessarily refer 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.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An air duct of an axial flow fan for an air conditioner, comprising:
the body comprises an inner ring, a cylindrical shell and a plurality of blades, wherein the shell is sleeved on the outer side of the inner ring, the blades are positioned between the inner ring and the shell and connected with the inner ring and the shell, and the blades are matched with the inner ring and the shell to define an air outlet;
the front pressing plate is arranged at the air outlet and is provided with a front edge and a rear edge along the flowing direction of the air flow, and the rear edge obliquely extends towards the direction close to the air supply outlet of the air conditioner;
the front pressing plate is arranged at one side of the air outlet close to the air supply outlet;
the front edge is connected with the outer wall surface of the inner ring;
the longitudinal section of the front pressing plate is an arc surface, and the arc surface protrudes towards the axial direction close to the air duct;
the two ends of the front pressing plate, which are oppositely arranged along the circumferential direction of the air duct, are fixedly connected with the two blades;
the air duct of the axial flow fan is communicated with the air supply opening, and the axis of the air duct is perpendicular to the axis of the air supply opening.
2. The wind channel of the axial flow fan according to claim 1, wherein the wind channel comprises a plurality of air channels,
the front edge is smoothly connected with the outer wall surface of the inner ring.
3. The wind tunnel of an axial flow fan according to claim 1 or 2, wherein,
the trailing edge is flush with the air outlet.
4. The wind tunnel of an axial flow fan according to claim 1 or 2, wherein,
the blade comprises a main body and a protruding part, wherein the main body is provided with a concave pressure surface and a convex suction surface, and the protruding part is connected with the rear end of the main body and protrudes towards the pressure surface side;
wherein the front edge is flush with the front end of the projection.
5. The wind tunnel of an axial flow fan according to claim 1 or 2, wherein,
the projection of the front pressing plate on the cross section of the air duct is in the range of 5cm-12cm along the radial direction of the air duct.
6. The wind tunnel of an axial flow fan according to claim 1 or 2, wherein,
the front pressing plate and the body are of an integrated structure.
7. The wind tunnel of an axial flow fan according to claim 1 or 2, wherein,
the front pressing plate and the body are of a split type structure.
8. An axial flow fan, comprising:
the air duct of the axial flow fan according to any one of claims 1 to 7; and
and the wind wheel is arranged in the air duct.
9. An air conditioner, comprising:
the machine body is provided with an air supply outlet; and
the axial flow fan of claim 8, installed in the machine body, and an air duct of the axial flow fan is communicated with the air supply port, and an axis of the air duct is perpendicular to an axis of the air supply port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041065.0A CN107654420B (en) | 2017-10-30 | 2017-10-30 | Air conditioner, axial flow fan and air duct thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041065.0A CN107654420B (en) | 2017-10-30 | 2017-10-30 | Air conditioner, axial flow fan and air duct thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107654420A CN107654420A (en) | 2018-02-02 |
| CN107654420B true CN107654420B (en) | 2024-04-09 |
Family
ID=61096667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711041065.0A Active CN107654420B (en) | 2017-10-30 | 2017-10-30 | Air conditioner, axial flow fan and air duct thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107654420B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306766B (en) * | 2022-07-06 | 2023-03-14 | 广州和普乐健康科技有限公司 | Air duct module structure and breathing machine |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008082397A1 (en) * | 2006-12-29 | 2008-07-10 | Carrier Corporation | Reduced tip clearance losses in axial flow fans |
| CN204099285U (en) * | 2013-07-26 | 2015-01-14 | 美蓓亚株式会社 | Axial fan |
| CN104564842A (en) * | 2015-01-29 | 2015-04-29 | 苏莫明 | Guide device of bidirectional reversible axial-flow fan |
| 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 |
| CN205119248U (en) * | 2015-09-30 | 2016-03-30 | 广东美的制冷设备有限公司 | Machine in circular air conditioning |
| CN205316626U (en) * | 2016-01-08 | 2016-06-15 | 广东美的制冷设备有限公司 | Air guide component and axial compressor cabinet -type air conditioner |
| CN106015104A (en) * | 2016-07-13 | 2016-10-12 | 芜湖美智空调设备有限公司 | Air conditioner, axial flow fan and stator blade of axial flow fan |
| CN206073261U (en) * | 2016-08-17 | 2017-04-05 | 芜湖美智空调设备有限公司 | Cabinet air-conditioner and air-conditioner |
| CN207420973U (en) * | 2017-10-30 | 2018-05-29 | 广东美的制冷设备有限公司 | Air conditioner, axial flow blower and its air passage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050186070A1 (en) * | 2004-02-23 | 2005-08-25 | Ling-Zhong Zeng | Fan assembly and method |
-
2017
- 2017-10-30 CN CN201711041065.0A patent/CN107654420B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008082397A1 (en) * | 2006-12-29 | 2008-07-10 | Carrier Corporation | Reduced tip clearance losses in axial flow fans |
| CN204099285U (en) * | 2013-07-26 | 2015-01-14 | 美蓓亚株式会社 | Axial fan |
| CN104564842A (en) * | 2015-01-29 | 2015-04-29 | 苏莫明 | Guide device of bidirectional reversible axial-flow fan |
| 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 |
| CN205119248U (en) * | 2015-09-30 | 2016-03-30 | 广东美的制冷设备有限公司 | Machine in circular air conditioning |
| CN205316626U (en) * | 2016-01-08 | 2016-06-15 | 广东美的制冷设备有限公司 | Air guide component and axial compressor cabinet -type air conditioner |
| CN106015104A (en) * | 2016-07-13 | 2016-10-12 | 芜湖美智空调设备有限公司 | Air conditioner, axial flow fan and stator blade of axial flow fan |
| CN206073261U (en) * | 2016-08-17 | 2017-04-05 | 芜湖美智空调设备有限公司 | Cabinet air-conditioner and air-conditioner |
| CN207420973U (en) * | 2017-10-30 | 2018-05-29 | 广东美的制冷设备有限公司 | Air conditioner, axial flow blower and its air passage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107654420A (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105697394B (en) | The efficient exit flow field of microminiature is undistorted centrifugal blower | |
| CN107654420B (en) | Air conditioner, axial flow fan and air duct thereof | |
| CN104729041A (en) | Guide ring, air duct structure and air-conditioner indoor cabinet | |
| CN110671746A (en) | Air duct structure, indoor unit and air conditioner | |
| CN207795691U (en) | A kind of axial flow blower ducting assembly | |
| CN207420973U (en) | Air conditioner, axial flow blower and its air passage | |
| CN207073490U (en) | Axial-flow windwheel and there is its fan | |
| CN208238076U (en) | Wind-guiding coil assembly, air-conditioner outdoor unit and air conditioner | |
| CN108302065B (en) | Low noise axial-flow leaf | |
| CN115750466A (en) | Air blower | |
| CN210292223U (en) | Air duct assembly and air conditioner | |
| CN208579420U (en) | Electric machine support and air-conditioner outdoor unit | |
| CN204629753U (en) | Indoor apparatus of air conditioner | |
| CN204629754U (en) | Indoor apparatus of air conditioner | |
| CN211233088U (en) | Air duct structure, indoor unit and air conditioner | |
| CN204629758U (en) | Indoor apparatus of air conditioner | |
| CN204629759U (en) | Indoor apparatus of air conditioner | |
| CN214998454U (en) | Volute structure, fan and fresh air unit | |
| CN104832987A (en) | Indoor unit of air conditioner | |
| CN211575278U (en) | Indoor unit of air conditioner | |
| CN204629757U (en) | Indoor apparatus of air conditioner | |
| CN211575451U (en) | Air duct piece and air duct component for air conditioner and air conditioner | |
| CN104832988A (en) | Indoor unit of air conditioner | |
| CN108917036B (en) | Air guide ring assembly, air conditioner outdoor unit and air conditioner | |
| CN220134276U (en) | Volute component, fresh air module and air conditioner |
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 |