CN218953639U - Fan, guiding device, air conditioner outdoor unit and air conditioning system - Google Patents
Fan, guiding device, air conditioner outdoor unit and air conditioning system Download PDFInfo
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- CN218953639U CN218953639U CN202223258649.2U CN202223258649U CN218953639U CN 218953639 U CN218953639 U CN 218953639U CN 202223258649 U CN202223258649 U CN 202223258649U CN 218953639 U CN218953639 U CN 218953639U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model relates to the technical field of air conditioners, in particular to a fan, a flow guiding device, an air conditioner outdoor unit and an air conditioning system. The fan provided by the utility model comprises a hub, a fan blade and a first flow guide wing piece, wherein the first flow guide wing piece is arranged at one end of the air inlet side of the hub, when the fan operates, the hub drives the fan blade to rotate, air flow enters from the air inlet side and flows out from the air outlet side, the hub also drives the first flow guide wing piece to synchronously rotate, the first flow guide wing piece rotates to drive the air flow to do work, the first flow guide wing piece guides the air flow to impact the tail edge position of the fan blade, the kinetic energy of the tail edge of the fan blade is enhanced, the pneumatic separation phenomenon of the tail edge of the fan blade is slowed down, the pneumatic separation loss is reduced, the work efficiency of the fan blade is improved, the functional capability of the fan blade is enhanced, and the whole performance of the fan is further enhanced.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a fan, a flow guiding device, an air conditioner outdoor unit and an air conditioning system.
Background
The air conditioner generally comprises an indoor unit and an outdoor unit, wherein the outdoor unit comprises a low-pressure tank, a compressor, a four-way valve, an outdoor heat exchanger, a fan and other structures, the outdoor heat exchanger surrounds into a U shape and is arranged between the outdoor heat exchanger and the chassis on the chassis to form a containing cavity, the low-pressure tank, the compressor and other structures are arranged in the containing cavity, and the fan is arranged at an air outlet on the upper side of the heat exchanger.
In an air conditioner outdoor unit, a fan air duct system directly influences the air quantity required by heat exchange of an outdoor heat exchanger, so that the running performance of the system is influenced. The performance of the air conditioner outdoor unit fan directly influences the performance of an air duct system, in the running process of the fan, because of the existence of a fluid boundary layer, airflow flows to the tail edge of a fan blade, the kinetic energy at the bottom of the boundary layer is insufficient to flow and stagnate, a pneumatic separation phenomenon occurs, the acting efficiency of the fan blade is influenced, and the overall performance of the fan is further influenced.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: in the existing fan of the air conditioner outdoor unit, air flows to the tail edge of the fan blade, the kinetic energy at the bottom of a boundary layer is insufficient, the flow is stagnant, a pneumatic separation phenomenon occurs, and the action of the fan blade is influenced.
In order to solve the technical problems, an embodiment of the present utility model provides a fan, including a hub, fan blades and a first guide vane, wherein a plurality of fan blades are disposed on an outer sidewall of the hub in a circumferential direction, the first guide vane is disposed at an air inlet side of the hub, and the first guide vane is used for guiding airflow to a tail edge of the fan blades.
According to one embodiment of the utility model, N1 guide vanes are arranged, N are arranged on the fan blades, N1 is larger than or equal to N, and N1 is an integer multiple of N.
According to one embodiment of the utility model, a first rectifying piece is arranged at one end of the air inlet side of the hub, and the first flow guiding fin is arranged on the first rectifying piece.
According to one embodiment of the present utility model, the surface of the first rectifying member forms a first rectifying surface, and the cross-sectional area of the first rectifying member in the direction from the air inlet side to the air outlet side is gradually increased.
According to one embodiment of the present utility model, the first rectifying member is in the shape of a droplet, a bullet or a hemisphere.
According to one embodiment of the utility model, the hub is cylindrical, the distance from the fan blade extension rotation track to the hub axis is R, and the distance from the first guide vane extension rotation track to the hub axis is R1, wherein R1 is more than 0.1 and less than R1.
According to one embodiment of the utility model, one end of the wind outlet side of the hub is provided with a second flow guiding fin.
According to one embodiment of the utility model, N2 second guide vanes are arranged, N is arranged on the fan blades, N2 is larger than or equal to N, and N2 is an integer multiple of N.
According to one embodiment of the utility model, the hub is cylindrical, the distance from the fan blade extension rotation track to the hub axis is R, and the distance from the second guide vane extension rotation track to the hub axis is R2, wherein R2 is more than 0.2R and less than 0.5R.
According to one embodiment of the utility model, a second rectifying piece is arranged at one end of the wind outlet side of the hub, and the second flow guiding fin is arranged on the second rectifying piece.
According to one embodiment of the utility model, the surface of the second rectifying member forms a second rectifying surface, and the cross-sectional area of the second rectifying member in the direction from the air inlet side to the air outlet side is gradually reduced.
The utility model further provides a flow guiding device, which comprises a flow guiding ring and the fan in any embodiment, wherein the flow guiding ring is of a structure with two open ends, and the hub and the fan blade are both positioned in the flow guiding ring.
According to one embodiment of the utility model, the fan further comprises a first guide vane and a second guide vane, wherein the first guide vane is arranged on the air inlet side of the fan, and the second guide vane is arranged on the air outlet side of the fan.
An embodiment of the present utility model further provides an outdoor unit of an air conditioner, including the flow guiding device according to any one of the embodiments.
In still another aspect, an embodiment of the present utility model provides an air conditioning system, including an indoor unit of an air conditioner, and the outdoor unit of the air conditioner described in the foregoing embodiment.
The utility model has the beneficial effects that: the fan provided by the embodiment of the utility model comprises a hub, a fan blade and a first guide wing piece, wherein the first guide wing piece is arranged at one end of the air inlet side of the hub, when the fan operates, the hub drives the fan blade to rotate, air flow enters from the air inlet side and flows out from the air outlet side, the hub also drives the first guide wing piece to synchronously rotate, the first guide wing piece rotates to drive the air flow to do work, the first guide wing piece guides the air flow to impact the tail edge position of the fan blade, the kinetic energy of the tail edge of the fan blade is enhanced, the pneumatic separation phenomenon of the tail edge of the fan blade is slowed down, the pneumatic separation loss is reduced, the work efficiency of the fan blade is improved, the functional capacity of the fan blade is enhanced, and the performance of the whole fan is further enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a blower provided in one embodiment of the present utility model;
FIG. 2 is a top view of a fan provided in one embodiment of the present utility model;
FIG. 3 is a bottom view of a blower provided in one embodiment of the utility model;
FIG. 4 is a front view of a blower provided in one embodiment of the utility model;
fig. 5 is a schematic structural diagram of a flow guiding device according to an embodiment of the present utility model.
Icon: 1-a fan; 11-a hub; 12-fan blades; 13-a first fairing; 131-a first rectifying surface; 132-first guide vanes; 14-a second fairing; 141-a second rectifying surface; 142-second guide vanes; 2-a flow guiding device; 21-a guide ring; 22-second guide vanes; 23-a second fixed block; 24-second guide ring.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model can be more clearly understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings and are described in the appended drawings, without any conflict. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 4, an embodiment of an aspect of the present utility model provides a fan 1, including: the wind turbine comprises a hub 11, wind blades 12 and first guide vanes 132, wherein a plurality of wind blades 12 are arranged on the peripheral outer side wall of the hub 11, the first guide vanes 132 are arranged at one end of the wind inlet side of the hub 11, and the first guide vanes 132 are used for guiding air flow to the tail edges of the wind blades 12.
Optionally, the fan 1 provided in this embodiment is an axial flow fan, the existing axial flow fan, the hub 11 is cylindrical, two ends of the hub are both planar structures, in the running process of the fan 1, the kinetic energy of the airflow blown to the tail edge of the fan blade 12 is insufficient, the pneumatic separation phenomenon easily occurs, the working efficiency of the fan blade 12 is affected, and then the overall performance of the fan 1 is affected. In this embodiment, the first guiding vane 132 is disposed at the air inlet end of the hub 11, when the fan 1 operates, the hub 11 drives the fan blade 12 to rotate, the air flow enters from the air inlet side and flows out from the air outlet side, the hub 11 also drives the first guiding vane 132 to synchronously rotate, the first guiding vane 132 rotates to drive the air flow to do work, the first guiding vane 132 guides the air flow to impact the position of the trailing edge of the fan blade 12, the kinetic energy of the trailing edge of the fan blade 12 is enhanced, the pneumatic separation phenomenon of the trailing edge of the fan blade 12 is slowed down, the pneumatic separation energy loss is reduced, the work efficiency of the fan blade 12 is improved, the work capability of the fan blade 12 is enhanced, and the overall performance of the fan 1 is further enhanced.
According to one embodiment of the present utility model, as shown in fig. 1 to 4, the number of the first guiding fins 132 is N1, the number of the fan blades 12 is N, N1 is greater than or equal to N, and N1 is an integer multiple of N; that is, the number of the first guiding fins 132 is greater than or equal to the number of the fan blades 12, at least one first guiding fin 132 corresponds to each fan blade 12 on the air inlet side, and the first guiding fins 132 guide the air flow to the corresponding tail edge position of the fan blade 12, so that each fan blade 12 can enhance the kinetic energy at the tail edge, slow down the pneumatic separation phenomenon of the tail edge of the fan blade 12, and reduce the pneumatic separation energy loss. As shown in fig. 1 to 3, in the present embodiment, four fan blades 12 are provided, and four first guiding fins 132 are provided, that is, n1=n, each fan blade 12 corresponds to one first guiding fin 132, and the kinetic energy at the trailing edge of each fan blade 12 can be enhanced through the corresponding first guiding fin 132, so that the situation of pneumatic separation at the trailing edge is slowed down, and the functional capability of the fan blade 12 is further enhanced. Of course, in the present embodiment, the number of the first guiding fins 132 corresponding to each fan blade 12 may be two, three, four, etc., that is, N1 is two times, three times, four times, etc. of N. It is also possible to achieve the purpose of enhancing the kinetic energy of the trailing edge of the corresponding fan blade 12 by the first guide vane 132. In this embodiment, as shown in fig. 3, the projection of the first guiding fins 132 from the bottom falls on the corresponding first guiding fins 132.
According to one embodiment of the present utility model, the hub 11 is cylindrical, the distance from the epitaxial rotation track of the fan blade 12 to the axis of the hub 11 is R, and the distance from the epitaxial rotation track of the first guide vane 132 to the axis of the hub 11 is R1, where R < R1.
According to an embodiment of the present utility model, as shown in fig. 1 and 4, a first rectifying member 13 is disposed at an air inlet side of the hub 11, and the first guiding fin 132 is disposed on the first rectifying member 13; the first guide vane 132 is arranged through the first rectifying piece 13, and meanwhile, the first rectifying piece 13 can also rectify the air flow entering the fan blade 12, so that the pneumatic separation phenomenon of the air outlet side of the hub 11 is reduced, the energy loss is reduced, the work is enhanced, and the running efficiency of the fan 1 is improved; optionally, in this embodiment, the plurality of first guide fins 132 are uniformly distributed on the surface of the first rectifying member 13 in the circumferential direction.
Of course, in the present application, the first guiding vane 132 may be directly connected to the air inlet end of the hub 11, so that the purpose of increasing the kinetic energy of the air inlet side tail edge of the fan blade 12 through the first guiding vane 132 and further reducing the occurrence of pneumatic separation at the air pressure tail edge can be achieved.
The hub 11 of the axial flow fan for the outdoor unit of the existing air conditioner is cylindrical, and almost no flow field exists around the whole hub 11, so that the uniformity of air flow blown out from the air outlet side of the hub 11 is poor, the air flow loss is more, the flow field is uneven, the pneumatic separation phenomenon occurs, and the overall operation efficiency of the fan 1 is influenced; in this application, set up first rectifier 13 in the one end of wheel hub 11 air inlet side, consequently, from the air current that wheel hub 11 air inlet side got into behind contact first rectifying surface 131, because the wall effect, the air current can adsorb on first rectifying surface 131, flow along first rectifying surface 131, the flow field around wheel hub 11 is better, utilize wall effect to rectify wheel hub 11 department inflow, reduce the pneumatic separation phenomenon of wheel hub 11 air-out side, reduce the energy loss, the reinforcing acting, promote fan 1 running efficiency. Meanwhile, the first guide vane 132 arranged on the first rectifying piece 13 synchronously rotates along with the hub 11, the first guide vane 132 rotates to drive the airflow to do work, the first guide vane 132 guides the airflow to impact the tail edge position of the fan blade 12, the kinetic energy at the tail edge of the fan blade 12 is enhanced, the pneumatic separation phenomenon of the tail edge of the fan blade 12 is slowed down, the pneumatic separation loss is reduced, the work efficiency of the fan blade 12 is improved, the work capability of the fan blade 12 is enhanced, and the overall performance of the fan 1 is further enhanced.
In this embodiment, the fan 1 is used in an air duct system of an outdoor unit of an air conditioner, and of course, the fan 1 in this embodiment may be applied to other fields as well; as shown in fig. 1 and 4, the hub 11 is cylindrical, and a plurality of blades 12 are connected to the outer wall of the cylindrical hub 11, and the plurality of blades 12 are spaced apart from each other in the circumferential direction of the hub 11. Wherein the fan blades 12 are in a fan shape, one end of the fan blades 12 connected with the outer wall of the hub 11 is narrower in width, and the other opposite end is wider in width; the hub 11 drives the fan blades 12 to rotate so as to drive the air from the air inlet side to the air outlet side, and the heat of the heat exchanger is taken away through the air flow.
According to an embodiment of the present utility model, a guide ring 21 is further disposed on the outer side of the fan 1, the guide ring 21 is in a ring shape, the hub 11 and the fan blades 12 are both disposed in the guide ring 21, the guide ring 21 is in a ring-shaped structure with two open ends, and the open ends on two sides of the guide ring 21 are an air inlet side and an air outlet side respectively; the hub 11 is equipped with towards air inlet side one end first rectifier 13, form the clearance between the inner wall of fan blade 12 and water conservancy diversion circle 21, be equipped with first pivot (not shown in the figure) in the hub 11, fan 1 still includes motor (not shown in the figure), motor and first pivot transmission are connected, drive first pivot rotation, first pivot drive hub 11 synchronous rotation, hub 11 drives fan blade 12 round the axis rotation, fan blade 12 rotation makes the gas get into water conservancy diversion circle 21 from the air inlet side in, and flow from the air-out side, when the air current contacted the first rectifying surface 131 of first rectifier 13, because the coanda effect, the air current can flow along first rectifying surface 131 at hub 11 surface, consequently, form the flow field near hub 11, the air current that flows from the air-out side is more even, utilize coanda effect to rectify the flow in hub 11 department, reduce the pneumatic separation of hub 11 air-out side, reduce the energy loss.
According to an embodiment of the present utility model, the cross-sectional area of the first rectifying surface 131 gradually increases from the air inlet side to the air outlet side; in this embodiment, the surface area of the first rectifying surface 131 from the air outlet side to the air inlet side is gradually increased, that is, from the air inlet side to the air outlet side, and the air flow is inclined from the middle to the outside, so that after contacting the first rectifying surface 131, the air flow can move to the air outlet side on the hub 11 along the first rectifying surface 131, and further, a better flow field can be formed near the hub 11, so that the air flow at the air outlet side is more uniform, the energy loss is reduced, the work is enhanced, and the operation efficiency of the fan 1 is improved.
According to an embodiment of the present embodiment, as shown in fig. 1 to 4, the first rectifying member 13 is bullet-shaped, that is, the first rectifying surface 131 has a smooth curved surface structure, so that the wall attachment effect of the airflow on the first rectifying surface 131 is better, the wind resistance received during the airflow flowing is smaller, and the energy loss can be reduced.
According to another embodiment of the present utility model, the first rectifying member 13 is in a droplet shape, that is, the first rectifying member 13 has an elliptical-like structure, and the first rectifying surface 131 is also in a curved surface structure, so that the purpose of improving the flow field of the hub 11 through the first rectifying surface 131 can be achieved.
According to another embodiment of the present utility model, the first rectifying member 13 is in a hemispherical shape, and the spherical body is formed after cutting along any one plane, and the first rectifying surface 131 is an arc surface, so that the airflow flows more smoothly on the first rectifying surface 131.
In the above embodiment of the present utility model, as shown in fig. 4, the end of the first rectifying member 13 connected to the hub 11 is circular and is coaxially disposed with the hub 11, and the end of the first rectifying member 13 connected to the hub 11 has a circular radius d of 0.9d <1.1d; optionally, in this embodiment, the radius of the hub 11 is equal to the radius of the end of the first rectifying member 13 connected to the hub 11, so that the airflow flows from the first rectifying surface 131 to the surface of the hub 11 more smoothly; of course, in this embodiment, the radius of the hub 11 may be slightly larger or slightly smaller than the radius of the end of the first rectifying member 13 near the hub 11, which can also achieve the purpose of air flow from the first rectifying surface 131 to the surface of the hub 11.
According to an embodiment of the present utility model, as shown in fig. 4, the height of the first rectifying member 13 is h,0.6d < h <3d, preferably, in this embodiment, h=d, that is, the height of the first rectifying member 13 is equal to the radius of the first rectifying member 13, where the first rectifying member 13 is similar to a hemispherical body, and the coanda effect of the airflow is better; in this embodiment, the first rectifying member 13 is preferably in a shape of a sharp length, so that a flat width is avoided (i.e., the height h of the first rectifying member 13 is much smaller than the radius d of the first rectifying member 13), which can better enable the airflow to flow along the first rectifying surface 131.
According to an embodiment of the present utility model, as shown in fig. 1, 2 and 4, a second guiding vane 142 is disposed at an air outlet side end of the hub 11. The existing hub 11 air outlet end is of a plane structure, the hub 11 air outlet end does not work, backflow is generated at the hub 11 air outlet end, energy loss is further caused, noise is generated, the second guide wing pieces 142 are arranged at the hub 11 air outlet end, when the hub 11 rotates, the second guide wing pieces 142 are driven to synchronously rotate, the second guide wing pieces 142 drive air flow to do work at the hub 11 air outlet end, backflow is prevented from being generated at the hub 11 air outlet end, the fan blades 12 do functional force is enhanced, the system efficiency is improved, and the noise is reduced.
According to one embodiment of the present utility model, as shown in fig. 2 and 4, the second guiding fins 142 are N2, the fan blades 12 are N, N2 is greater than or equal to N, and N2 is an integer multiple of N. That is, the number of the second guiding fins 142 is greater than or equal to the number of the fan blades 12, each fan blade 12 at least corresponds to one second guiding fin 142 on the air outlet side, and the backflow generated at the air outlet end of the hub 11 is reduced by the acting of the second guiding fins 142, so that the energy loss is reduced. As shown in fig. 2 and 4, in the present embodiment, four fan blades 12 are provided, and four second guiding fins 142 are provided, that is, n2=n, and each fan blade 12 corresponds to one second guiding fin 142. Of course, in the present embodiment, the number of the second guide vanes 142 corresponding to each fan blade 12 may be two, three, four, etc., that is, N2 is two times, three times, four times, etc. of N.
As shown in fig. 1 and fig. 4, the hub 11 is cylindrical, the distance from the epitaxial rotation track of the fan blade 12 to the axis of the hub 11 is R, and the distance from the epitaxial rotation track of the second guide vane 142 to the axis of the hub 11 is R2, where R2 is greater than 0.2 and R2 is less than 0.5.
According to an embodiment of the present utility model, as shown in fig. 1, 2 and 4, a second rectifying member 14 is disposed at an end of the wind outlet side of the hub 11, and the second guiding fins 142 are disposed on the second rectifying member 14. The surface of the second rectifying element 14 forms a second rectifying surface 141, and the cross-sectional area of the second rectifying element 14 gradually decreases from the air inlet side to the air outlet side. The second rectifying piece 14 is further provided with the second flow guiding fins 142, meanwhile, a second rectifying surface 141 is formed on the surface of the second rectifying piece 14, and through the coanda effect, air flows along the second rectifying surface 141, so that the uniformity of the air flow at the air outlet end of the fan 1 is adjusted. In this embodiment, the second rectifying member 14 has the same structure as the first rectifying member 13, and thus reference may be made to the first rectifying member 13 in the above embodiment for its specific structure. Of course, in the present application, the second air guiding fin 142 may be directly connected to the air outlet end of the hub 11, which can also achieve the rectifying effect through the second air guiding fin 142.
In another embodiment of the present utility model, as shown in fig. 5, a flow guiding device 2 is provided, where the flow guiding device 2 includes a flow guiding ring 21 and the fan 1 in any of the foregoing embodiments, the flow guiding ring 21 has an open structure at two ends, and the hub 11 and the fan blades 12 are both located in the flow guiding ring 21; the flow guiding device 2 provided by the embodiment is used for an outdoor unit of an air conditioner and is used for taking away heat of an outdoor heat exchanger of the outdoor unit of the air conditioner; because the air inlet end of the hub 11 of the fan 1 is provided with the first guide vane 132, the kinetic energy of the tail edge of the fan blade 12 is more sufficient, the pneumatic separation problem of the tail edge of the fan blade 12 can be alleviated, the pneumatic separation energy loss is reduced, the working efficiency of the fan blade 12 is improved, the functional capacity of the fan blade 12 is enhanced, the whole performance of the fan 1 is enhanced, the heat exchange efficiency of the air conditioner outdoor unit can be improved, and the operation efficiency of the whole air conditioner outdoor unit is further improved.
According to an embodiment of the present utility model, the flow guiding device 2 further comprises a first guide vane (not shown in the figure) and a second guide vane 22, wherein the first guide vane is arranged on the air inlet side of the fan 1, and the second guide vane 22 is arranged on the air outlet side of the fan 1; the first guide vane is arranged to rectify the airflow before entering the fan blade 12, the angle of the airflow directing to the surface of the fan blade 12 is adjusted, and the included angle of the impact fan blade 12 is changed, so that the working efficiency of the whole flow guiding device 2 can be improved, and the energy loss is reduced; the second guide vane 22 is arranged on the air outlet side of the guide ring 21, so that the circumferential speed of the air flow on the air outlet side can be converted into the axial speed, the static pressure resistance can be improved, the working efficiency is improved, and the noise is reduced.
According to an embodiment of the present utility model, the flow guiding device 2 further comprises a first guide ring (not shown in the figure), a second guide ring 24, a first fixing block (not shown in the figure) and a second fixing block 23; the first fixing block is arranged in the first guide ring, the first guide ring is arranged at the air inlet of the fan 1, one end of the first guide vane is connected with the first fixing block, and the other end of the first guide vane is connected with the first guide ring; the second fixing block 23 is disposed in the second guide ring 24, the second guide ring 24 is disposed at an air outlet of the fan 1, one end of the second guide vane 22 is connected to the second fixing block 23, and the other end is connected to the second guide ring 24. In this embodiment, the first guide vane is fixed by the first guide ring, the second guide vane 22 is fixed by the second guide ring 24, and the first guide ring and the second guide ring 24 may be integrated with the guide ring 21 or be split-type, and then the first guide ring and the second guide ring 24 are fixed with the guide ring 21 by means of welding screw connection.
The embodiment of the utility model also provides an outdoor unit of an air conditioner, which comprises the flow guiding device 2, a compressor, a low-pressure tank, an outdoor heat exchanger, an electric control box and a base; the outdoor heat exchanger is U-shaped, the outdoor heat exchanger is laterally placed, the lower end is connected with the base, the upper end is connected with the flow guiding device 2, the outdoor heat exchanger, the flow guiding device 2 and a containing cavity with one side open is formed between the bases, the compressor and the low-pressure tank are all arranged in the containing cavity, the electric control box is arranged at the opening of the containing cavity, an overhaul cover plate is further arranged at the opening of the containing cavity, and the overhaul cover plate can be used for opening the opening to overhaul and replace elements such as the compressor, the low-pressure tank and the four-way valve in the containing cavity. When the air conditioner outdoor unit is operated, air flow enters the accommodating cavity from the outer side of the accommodating cavity after heat exchange is carried out by the air conditioner outdoor heat exchanger, then is discharged through the flow guiding device 2 at the upper end, the flow guiding device 2 can slow down pneumatic separation of the air outlet end of the hub 11, energy loss is reduced, work is enhanced, the operation efficiency of the fan 1 is improved, the heat exchange effect of the outdoor heat exchanger is further improved, and the overall performance of the air conditioner outdoor unit is improved.
An embodiment of the present utility model further provides an air conditioning system, which includes an air conditioner indoor unit, and further includes the air conditioner outdoor unit described in the above embodiment, where the air conditioner indoor unit includes an indoor heat exchanger, an indoor fan 1, and other structures. The heat exchange performance of the outdoor heat exchanger of the air conditioner outdoor unit is better, so that the running performance of the whole air conditioning system can be improved.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (15)
1. A blower, comprising: hub (11), fan blade (12) and first water conservancy diversion fin (132), be equipped with a plurality of fan blades (12) on the lateral wall of hub (11) circumference, first water conservancy diversion fin (132) are located hub (11) air inlet side one end, first water conservancy diversion fin (132) are used for guiding the air current to the trailing edge of fan blade (12).
2. The fan according to claim 1, wherein N1 guide vanes (132) are provided, N are provided for the fan blades (12), N1 is greater than or equal to N, and N1 is an integer multiple of N.
3. The fan according to claim 1, wherein a first rectifying member (13) is provided at an end of the air intake side of the hub (11), and the first guide vane (132) is provided on the first rectifying member (13).
4. A fan according to claim 3, characterized in that the surface of the first rectifying member (13) forms a first rectifying surface (131), and the cross-sectional area of the first rectifying member (13) in the direction from the air intake side to the air outlet side is gradually increased.
5. The fan according to claim 4, characterized in that the first fairing (13) is drop-shaped, bullet-shaped or hemispherical.
6. A fan according to claim 3, wherein the hub (11) is cylindrical, the distance from the epitaxial rotation track of the fan blade (12) to the axis of the hub (11) is R, and the distance from the epitaxial rotation track of the first guide vane (132) to the axis of the hub (11) is R1, wherein R < R1 < R0.1.
7. The fan according to claim 1, wherein the hub (11) is provided with a second air guiding fin (142) at the air outlet side end.
8. The fan according to claim 7, wherein N2 second guide vanes (142) are provided, N are provided for the fan blades (12), N2 is greater than or equal to N, and N2 is an integer multiple of N.
9. The fan according to claim 7, wherein the hub (11) is cylindrical, the distance from the epitaxial rotation track of the fan blade (12) to the axis of the hub (11) is R, and the distance from the epitaxial rotation track of the second guide vane (142) to the axis of the hub (11) is R2, wherein R2 is greater than R2 and less than 0.5R.
10. The fan according to claim 7, wherein a second rectifying member (14) is provided at an end of the hub (11) on the air outlet side, and the second guide vane (142) is provided on the second rectifying member (14).
11. The fan according to claim 10, characterized in that the surface of the second rectifying member (14) forms a second rectifying surface (141), and the sectional area of the second rectifying member (14) in the direction from the air intake side to the air outlet side is gradually reduced.
12. A flow guiding device, characterized by comprising a flow guiding ring (21) and the fan as claimed in any one of claims 1 to 11, wherein the flow guiding ring (21) has a structure with two open ends, and the hub (11) and the fan blades (12) are both positioned in the flow guiding ring (21).
13. The flow guiding device according to claim 12, further comprising a first guide vane and a second guide vane (22), the first guide vane being arranged on the air inlet side of the fan, the second guide vane (22) being arranged on the air outlet side of the fan.
14. An outdoor unit of an air conditioner, comprising a deflector (2) according to claim 12 or 13.
15. An air conditioning system comprising an air conditioner indoor unit, further comprising the air conditioner outdoor unit of claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223258649.2U CN218953639U (en) | 2022-12-02 | 2022-12-02 | Fan, guiding device, air conditioner outdoor unit and air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223258649.2U CN218953639U (en) | 2022-12-02 | 2022-12-02 | Fan, guiding device, air conditioner outdoor unit and air conditioning system |
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| CN218953639U true CN218953639U (en) | 2023-05-02 |
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| CN202223258649.2U Active CN218953639U (en) | 2022-12-02 | 2022-12-02 | Fan, guiding device, air conditioner outdoor unit and air conditioning system |
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| CN (1) | CN218953639U (en) |
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