CN219366386U - Blade structure, wind wheel, fan and air conditioner - Google Patents
Blade structure, wind wheel, fan and air conditioner Download PDFInfo
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- CN219366386U CN219366386U CN202320006020.4U CN202320006020U CN219366386U CN 219366386 U CN219366386 U CN 219366386U CN 202320006020 U CN202320006020 U CN 202320006020U CN 219366386 U CN219366386 U CN 219366386U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model provides a blade structure, a wind wheel, a fan and an air conditioner. The blade central line of blade structure that this embodiment provided is including conical curve section, the at least part of blade structure can be conical curve's form extension, the curvature of the partial blade structure that conical curve section corresponds can change in extending direction, at the in-process that gas flows along the blade structure, more do benefit to blade structure to the gas acting, and drive gas flow, and then promote the efficiency of the affiliated fan of blade, reduce the consumption of fan, can improve the static pressure capacity of fan, reduce the possibility of fan stall, promote the performance of fan, the blade structure can adopt the sheet metal to make, the sheet metal component has good shaping precision and bearing property, and then do benefit to the static pressure and the amount of wind of the affiliated fan of further promotion blade structure.
Description
Technical Field
The utility model relates to the technical field of air conditioning equipment, in particular to a blade structure, a wind wheel, a fan and an air conditioner.
Background
In the field of air conditioning equipment, a fan is taken as an important component of an air conditioner, and the performance level of the fan directly relates to the overall service performance of the air conditioner. However, in practical application, the efficiency of some fans is lower, so that the power consumption of the fans is larger, and stall phenomenon easily occurs after a certain air volume static pressure is reached, so that the power of the fans is too high under high static pressure, and the performance of the fans is difficult to be improved.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.
To this end, a first aspect of the utility model provides a blade structure.
A second aspect of the utility model provides a wind turbine.
A third aspect of the utility model provides a blower.
A fourth aspect of the present utility model provides an air conditioner.
In view of this, a first aspect according to an embodiment of the present application proposes a blade structure made of sheet metal, the blade centerline of the blade structure comprising a conical curve section.
In one possible embodiment, the blade center line further comprises:
the straight line segment is connected with one end of the conical curve segment, and the straight line segment and the conical curve segment are in smooth transition;
the straight line section is close to the air outlet end of the blade structure, and the conical curve section is close to the air inlet end of the blade structure.
In one possible embodiment, the straight line segment is tangential to the conical curve segment.
In one possible embodiment, the ratio of the length of the straight line segment to the chord length of the conic curve segment is less than or equal to 0.2.
In one possible embodiment, the eccentricity of the blade centerline is greater than or equal to 0.25 and less than or equal to 0.6; and/or
The air inlet angle of the blade structure is more than or equal to 50 degrees and less than or equal to 75 degrees; and/or
The air outlet angle of the blade structure is more than or equal to 135 degrees and less than or equal to 170 degrees; and/or
The center angle of the vane structure is greater than or equal to 3 DEG and less than or equal to 8 deg.
In one possible embodiment, the thickness of the blade structure is uniform along the direction from the inlet end of the blade structure to the outlet end of the blade structure.
In one possible embodiment, the ratio of the thickness of the blade structure to the chord length of the conic section is less than or equal to 0.15.
According to a second aspect of embodiments of the present application, a wind turbine is provided, comprising:
a hub;
a plurality of blade structures as set forth in any one of the first aspect, penetrating the hub, the plurality of blade structures being arranged at intervals along a circumferential direction of the hub;
and one end of the blade structure is connected to the tire.
In one possible embodiment, the end of the blade structure connected to the rim is formed with a fastening structure by which the blade structure is connected to the rim.
In one possible embodiment, the distance from the inlet end of the blade structure to the hub axis is greater than or equal to 75mm and less than or equal to 180mm;
the distance from the air outlet end of the blade structure to the axis of the hub is more than or equal to 90mm and less than or equal to 230mm;
the distance from the air outlet end of the blade structure to the outer edge of the hub is less than or equal to 5mm, and the distance from the air outlet end of the blade structure to the axis of the hub is less than or equal to the radius of the hub.
In one possible embodiment, the distance between two adjacent blade structures is greater than or equal to 6mm and less than or equal to 20mm.
In one possible embodiment, the wind turbine further comprises:
the shaft sleeve is arranged on the hub.
According to a third aspect of embodiments of the present application, there is provided a fan, including:
the spiral case is provided with a centrifugal air duct;
a wind wheel as claimed in any one of the second aspects above, disposed within a centrifugal wind tunnel.
According to a fourth aspect of the embodiments of the present application, there is provided an air conditioner, including:
a fan as claimed in any one of the above third aspects.
Compared with the prior art, the utility model at least comprises the following beneficial effects: the blade central line of the blade structure provided by the embodiment of the application comprises a conical curve section, the blade structure can be used as a component of a wind wheel of a fan in practical application, for example, a plurality of blade structures can be installed on a hub of the wind wheel so that each blade follows the hub to rotate, thereby driving gas to flow so as to realize air supply. Meanwhile, the blade structure that this application embodiment provided can adopt the panel beating to make, and the sheet metal component has good forming accuracy, is convenient for control the molding of blade structure in production process to guarantee the dimensional accuracy of blade structure, and the blade structure of panel beating also can possess good structural strength after the shaping, can promote the bearing capacity of blade structure, and then do benefit to static pressure and the amount of wind of further promotion blade structure belonged to fan.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the exemplary embodiments. The drawings are only for purposes of illustrating exemplary embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic block diagram of a first view of a blade structure of one embodiment provided herein;
FIG. 2 is a schematic block diagram of a second view of a blade structure of one embodiment provided herein;
FIG. 3 is a schematic cross-sectional view of the blade structure shown in FIG. 2 along the A-A direction;
FIG. 4 is a schematic application scenario diagram of a blade structure of an embodiment provided herein;
FIG. 5 is a schematic partial enlarged view of region B of FIG. 4;
FIG. 6 is a schematic block diagram of a first view of a wind turbine according to one embodiment of the present application;
FIG. 7 is a schematic block diagram of a second view of a wind turbine according to one embodiment of the present application;
FIG. 8 is a schematic cross-sectional view of the wind rotor shown in FIG. 7 in the direction C-C;
FIG. 9 is a schematic block diagram of a hub of one embodiment provided herein;
FIG. 10 is a schematic block diagram of a tire according to one embodiment provided herein;
FIG. 11 is a schematic block diagram of a first view of a blower of one embodiment provided herein;
FIG. 12 is a schematic block diagram of a second view of a blower of one embodiment provided herein.
The correspondence between the reference numerals and the component names in fig. 1 to 12 is:
10 wind wheels; a 20 volute;
a 100-leaf structure; a 200 hub; 300 tyre; 400 sleeves;
110 a fastening structure;
101 blade midline; 201 a first mounting hole; 301 a second mounting hole;
1011 conical curve section; 1012 straight line segment.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1 to 12, according to a first aspect of the embodiment of the present application, a blade structure 100 is proposed, the blade structure 100 being made of sheet metal, a blade center line 101 of the blade structure 100 comprising a conical curve section 1011.
According to the blade center line 101 of the blade structure 100 provided by the embodiment of the application, the blade center line 101 comprises the conical curve section 1011, the blade structure 100 can be used as a component of the wind wheel 10 of the fan in practical application, for example, a plurality of blade structures 100 can be installed on the hub 200 of the wind wheel 10 so that each blade follows the hub 200 to rotate, thereby driving air to flow to realize air supply.
It will be appreciated that the blade centerline 101 of the blade structure 100 may also be referred to as a blade profile, as shown in FIG. 3, and that the cross-section of the blade structure 100 generally extends along a particular curve, which is the profile of the blade, commonly referred to as the blade centerline or blade profile, and the form of the blade centerline 101 generally directly affects the efficiency of the fan to which the blade structure 100 belongs, depending on the application requirements.
It will be appreciated that the conic section generally comprises a hyperbola, a parabola, or an ellipse, and that the blade centerline 101 of the blade structure 100 described above comprises a conic section 1011, i.e., the blade centerline 101 of the blade structure 100 may comprise a hyperbola section or a parabola section or an ellipse arc. If a rectangular coordinate system is established in the cross section of the blade structure 100, the general expression for the conical curve section 1011 with the blade center line 101 is as follows:
A·x 2 +B·x·y+C·y 2 +D·x+E·y+F＝0 (1)
in formula (1), A, B, C, D, E and F are real numbers, and a+.0, b+.0, c+.0; it will be appreciated that when B2-4 AC <0, the conic section 1011 of the blade centerline 101 is an elliptical arc; when B2-4ac=0, the conic curve section 1011 of the blade centerline 101 is a parabolic section; when B2-4 AC >0, the conical curve section 1011 of the blade centerline 101 is a hyperbolic section.
It should be noted that in some examples, the blade center line of the fan blade is mostly an arc, and is mostly a single arc, and it can be understood that the blade center line of the single arc is that the blade center line is formed by a continuous arc, but in practical application, the blade center line of the single arc has poor adjustability, and it is difficult to achieve substantial improvement of the fan efficiency by adjusting parameters of the blade center line; some fan blades also have blade midlines in the form of double arcs or multiple arcs, and it can be understood that the blade midlines in the form of double arcs or multiple arcs are formed by two or more connected arcs, but the curvature of the joint of the double arcs or the multiple arcs is discontinuous, so that the speed loss of gas is easy to cause in practical application, and the performance improvement of the fan is very limited.
Compared with the fan blade adopting the arc-shaped blade center line, the blade center line 101 of the blade structure 100 provided by the embodiment of the utility model comprises the conical curve section 1011, on one hand, the curvature of a part of the blade structure 100 corresponding to the conical curve section 1011 can be changed in the extending direction, in the process that the air flows along the blade structure 100, the blade structure 100 is more beneficial to doing work on the air and driving the air to flow, the air flow resistance is reduced, the efficiency of the fan to which the blade belongs is further improved, the power consumption of the fan is reduced, the static pressure capacity of the fan can be improved, the possibility of stall of the fan is reduced, the service performance of the fan is improved, and the air quantity of the fan is increased; on the other hand, the curvature of the blade structure 100 can be ensured to have higher continuity, so that the speed loss in the using process is reduced, and the maximum static pressure and the air quantity of the fan are further increased, for example, the formula (1) is derived, and the formula (2) can be obtained:
as can be seen from the formula (2), the blade center line 101 of the blade structure 100 can maintain the curvature continuous in the conical curve section 1011, and further, compared with the bi-arc or multi-arc blade center line, the speed loss in the use process can be reduced, which is beneficial to further increasing the maximum static pressure and the air volume of the fan.
Meanwhile, the blade structure 100 provided by the embodiment of the application can be made of metal plates, the metal plates have good forming precision, the shape of the blade structure 100 is convenient to control in the production process, so that the dimensional precision of the blade structure 100 is guaranteed, the blade structure 100 of the metal plates can also have good structural strength after being formed, the bearing performance of the blade structure 100 can be improved, and further the static pressure and the air quantity of a fan to which the blade structure 100 belongs are further improved.
As shown in fig. 3, in some examples, the blade centerline 101 further comprises: a straight line segment 1012 connected to one end of the conical curve segment 1011, the straight line segment 1012 and the conical curve segment 1011 being smoothly transited; wherein the straight line segment 1012 is close to the air outlet end of the blade structure 100, and the conical curve segment 1011 is close to the air inlet end of the blade structure 100.
In this technical scheme, the blade center line 101 may further include a straight line segment 1012 connected to a segment of the conical curve segment 1011, where the straight line segment 1012 and the conical curve segment 1011 are in smooth transition, so that a large curvature mutation at the junction of the conical curve segment 1011 and the straight line segment 1012 can be avoided, which is beneficial to reducing the speed loss of gas in practical application, and further improving the air volume and static pressure capability of the fan.
It can be understood that, in practical application, when the blade follows the hub 200 and rotates, gas may flow from one end of the blade structure 100 to the other end, so that the two ends of the blade structure 100 may be respectively regarded as an air inlet end and an air outlet end, accordingly, one end of the blade centerline 101 near the air inlet end of the blade structure 100 may be regarded as the air inlet end of the blade centerline 101, one end of the blade centerline 101 near the air outlet end of the blade structure 100 may be regarded as the air outlet end of the blade centerline 101, in this technical scheme, the straight line segment 1012 is near the air outlet end of the blade structure 100, the curve segment 1011 is near the air inlet end of the blade structure 100, in this practical application, when the blade follows the hub 200 and rotates, gas may sequentially flow along a part of the blade structure 100 corresponding to the curve segment 1011 and a part of the blade structure 100 corresponding to the straight line segment 1012, and thus the gas may be accelerated by the part of the blade structure 100 when flowing through the part of the blade structure 100 corresponding to the curve segment 1011, thereby improving the flow rate of the gas, being favorable for increasing the flow rate of the blower, and when the gas flows through the part of the blade structure 100 corresponding to the blade structure 100, the part of the curve segment corresponding to the blade structure 100 is better in the air flow resistance, and the blower fan is better, and the blower fan resistance is better improved.
Note that, the smooth transition between the straight line segment 1012 and the conical curve segment 1011 means that the extending direction of the straight line segment 1012 and the extending direction of the conical curve segment 1011 maintain a high consistency; it will be appreciated that the straight line segment 1012 is connected to the conical curve segment 1011 such that there is an intersection between the straight line segment 1012 and the conical curve segment 1011, and that an angle between the tangential direction of the conical curve segment 1011 at the aforementioned intersection and the direction in which the straight line segment 1012 extends may be set to be less than or equal to 2 ° to ensure a smooth transition between the straight line segment 1012 and the conical curve segment 1011.
As shown in fig. 3, in some examples, straight line segment 1012 is tangent to conical curve segment 1011.
In the technical scheme, the straight line section 1012 and the conical curve section 1011 can be arranged tangentially, so that the smoothness of the transition between the straight line section 1012 and the conical curve section 1011 can be ensured to a great extent, the curvature mutation at the junction of the straight line section 1012 and the conical curve section 1011 is reduced, the flow rate loss of gas can be reduced in practical application, the efficiency of a fan to which the blade structure 100 belongs is further improved, the power consumption of the fan is reduced, the static pressure capacity of the fan can be improved, and the service performance of the fan is improved.
As shown in fig. 3, in some examples, the ratio of the length L1 of the straight line segment 1012 to the chord length L2 of the conical curve segment 1011 is less than or equal to 0.2.
In the technical scheme, the ratio of the length L1 of the straight line segment 1012 to the chord length L2 of the conical curve segment 1011 can be set to be smaller than or equal to 0.2, so that the length L1 of the straight line segment 1012 is constrained based on the proportion range of the wire harness, the length of the straight line segment 1012 is prevented from being too large, the length of a part of the blade structure 100 corresponding to the straight line segment 1012 can be shortened, the flow guiding of gas is further carried out by utilizing the part of the blade structure 100 corresponding to the straight line segment 1012, the gas can be ensured to be separated from the blade relatively quickly after flowing through the part of the blade structure 100 corresponding to the conical curve segment 1011, the outward conveying of the gas is realized, the edge loss of the gas is reduced, the prevention of the flow velocity and the pressure attenuation of the gas is facilitated, and the guarantee is provided for the improvement of the air quantity and the static pressure performance of the fan of the blade structure 100.
As shown in fig. 4 and 5, in some examples, the eccentricity e of the blade centerline 101 is greater than or equal to 0.25 and less than or equal to 0.6; and/or the inlet angle β1 of the vane structure 100 is greater than or equal to 50 ° and less than or equal to 75 °; and/or the outlet angle β2 of the blade structure 100 is greater than or equal to 135 ° and less than or equal to 170 °; and/or the center angle α of the blade structure 100 is greater than or equal to 3 ° and less than or equal to 8 °.
As shown in fig. 4, in practical application, the blade structure 100 provided in this embodiment may be used as a component of the wind wheel 10 of a wind turbine, it may be understood that the wind wheel 10 generally includes a plurality of blades, so that a plurality of the blade structures 100 may be disposed at intervals on the hub 200 of the wind wheel 10 and arranged in an annular array, where, in a case that a plurality of the blade structures 100 are disposed on the hub 200, the air inlet ends of the blade centerlines 101 of the respective blade structures 100 are located on the same circumference, and the air outlet ends of the blade centerlines 101 of the respective blade structures 100 are located on the same circumference; as shown in fig. 5, the included angle between the tangent line of the blade center line 101 at the air inlet end and the circumferential direction is the air inlet angle β1 of the blade structure 100, the included angle between the tangent line of the blade center line 101 at the air outlet end and the circumferential direction is the air outlet angle β2 of the blade structure 100, and as shown in fig. 4, the included angle between the line of the air inlet end of the blade center line 101 and the axis of the hub 200 and the line of the air outlet end of the blade center line 101 and the axis of the hub 200 is the center angle α of the blade structure 100.
In this technical solution, the parameter ranges of the 4 parameters including the eccentricity e of the blade center line 101, the air inlet angle β1 of the blade structure 100, the air outlet angle β2 of the blade structure 100 and the center angle α of the blade structure 100 are limited, and it is understood that the parameter ranges of the 4 parameters can be all adopted in practical application at the same time, one, two or three of the parameter ranges can also be adopted at will, and based on the limitation of the parameter ranges, the wind wheel 10 to which the blade structure 100 belongs can provide higher air volume and static pressure in a high-efficiency interval in practical application, which is beneficial to the performance of the wind turbine, reduces the power consumption of the wind turbine, further improves the service performance of the wind turbine, and simultaneously is beneficial to reducing the noise of the wind turbine in use, improving the user use appearance of the product, and improving the user use experience of the product.
It can be understood that under the condition that the parameter ranges of the 4 parameters are all adopted, the air volume and the static pressure of the fan to which the blade structure 100 belongs can be greatly improved, the energy consumption of the fan is saved, and the operation noise of the fan is reduced.
It can be appreciated that the blade center line 101 of the blade structure 100 provided in the embodiment of the present application is a conic curve, and based on the definition of the parameter range of the foregoing 4 parameters, the curve parameter of the conic curve can be determined conveniently, so as to guide the modeling of the blade structure 100.
It will be appreciated that the blade centerline 101 includes a conical curve segment 1011, whereby the camber of the conical curve segment 1011 can be constrained by limiting the extent of the eccentricity e of the blade centerline 101.
As shown in fig. 3, in some examples, the thickness of the blade structure 100 is uniform along the direction from the inlet end of the blade structure 100 to the outlet end of the blade structure 100.
In this technical scheme, along the direction of the air inlet end of blade structure 100 to the air outlet end of blade structure 100, the thickness of blade structure 100 is unanimous can be set up to can promote the thickness homogeneity of blade structure 100 of panel beating, in practical application, be favorable to improving the stability when blade structure 100 follows hub 200 and rotate, and it can be understood that in practical application, the surface that blade structure 100 is located the blade central line 101 both sides can be regarded as positive pressure face and negative pressure face respectively, based on the aforesaid setting, can make positive pressure face and negative pressure face all keep higher uniformity with the form of blade central line 101, and then more do benefit to blade structure 100 to gas work, promote the amount of wind and the static pressure performance of fan that blade structure 100 belongs to, reduce the energy consumption of fan.
As shown in FIG. 3, in some examples, a ratio of a thickness t of the blade structure 100 to a chord length L2 of the conical curve section 1011 is less than or equal to 0.15.
In the technical scheme, the ratio of the thickness t of the blade structure 100 to the chord length L2 of the conical curve section 1011 can be set to be smaller than or equal to 0.15, so that the overlarge thickness t of the blade structure 100 can be avoided, the weight of the blade structure 100 can be reduced, the driving energy consumption of the blade structure 100 can be reduced, the power consumption of a fan can be further reduced, the material consumption of the blade structure 100 can be reduced, the volume of the blade structure 100 can be reduced, and the processing difficulty and the processing cost of the blade structure 100 can be reduced.
As shown in fig. 6 to 10, according to a second aspect of the embodiment of the present application, there is provided a wind wheel 10, including: hub 200; a plurality of blade structures 100 as set forth in any one of the first aspect, penetrating through the hub 200, wherein the plurality of blade structures 100 are spaced apart along the circumferential direction of the hub 200; the tire 300, one end of the blade structure 100 is connected to the tire 300.
The wind wheel 10 provided in this embodiment may include a hub 200, a hub 300, and a plurality of blade structures 100 set forth in any one of the first aspect above, where the blade structures 100 are worn on the hub 200 and are arranged at intervals along a circumferential direction of the hub 200, one end of each blade structure 100 is connected with the hub 300, so that the end constraint of each blade structure 100 is performed by using the hub 300, stability of the wind wheel 10 during operation is improved, it may be understood that the hub 200 may be used to connect with an output shaft of a driving device, so as to drive the hub 200 and each blade structure 100 to rotate when the driving device operates, thereby driving gas to flow by using the blade structures 100 to realize air supply, at least part of the blade structures 100 can be extended in a conical curve, curvature of a part of the blade structures 100 corresponding to the conical section 1011 can be changed in an extending direction, in a process that gas flows along the blade structures 100, which is more beneficial to the blade structures 100 do work on the gas, and drive the gas to flow, thereby improving efficiency of a fan to which the blade belongs, reducing power consumption of the fan, improving static pressure capability of the fan, reducing possibility of stall, and improving usability of the fan.
Meanwhile, the blade structure 100 provided by the embodiment of the application can be made of metal plates, the metal plates have good forming precision, the shape of the blade structure 100 is convenient to control in the production process, so that the dimensional precision of the blade structure 100 is guaranteed, the blade structure 100 of the metal plates can also have good structural strength after being formed, the bearing performance of the blade structure 100 can be improved, and further the static pressure and the air quantity of a fan to which the blade structure 100 belongs are further improved.
Illustratively, as shown in fig. 8 and 9, the hub 200 may be formed with a first mounting hole 201, and the blade structure 100 may be penetrated through the hub 200 by the first mounting hole 201.
As shown in fig. 1, 2, 6 and 10, in some examples, a fastening structure 110 is formed at an end of the blade structure 100 to which the tire 300 is connected, and the blade structure 100 is connected to the tire 300 through the fastening structure 110.
In this technical scheme, the one end that blade structure 100 is used for connecting rim 300 can be formed with fastening structure 110, and blade structure 100 accessible aforementioned fastening structure 110 connects rim 300 to based on the aforesaid setting, can promote the joint strength between blade structure 100 and the rim 300, reduce the possibility that blade structure 100 is loose from rim 300, provide more reliable guarantee for the steady in-line operation of wind wheel 10, and fastening structure 110 can promote the connection compactness between blade structure 100 and the rim 300, do benefit to the reduction amount of wind and rotate the vibration noise of in-process.
As illustrated in fig. 1, 2 and 6, the fastening structure 110 may be a fastening tab, and as illustrated in fig. 10, the tire 300 may be formed with a second mounting hole 301, one end of the blade structure 100 may be inserted into the tire 300 through the second mounting hole 301, and the fastening tab may be fastened to the second mounting hole 301 of the tire 300, so as to improve the connection tightness between the blade structure 100 and the hub 200.
As shown in fig. 6 and 7, in some possible examples, the number of the wheel rims 300 may be two, and the two hubs 200 are respectively connected to two ends of the blade structure 100, so that end constraint on the blade structure 100 may be further enhanced, and stability and reliability of the wind wheel 10 may be improved. Accordingly, both ends of the blade structure 100 may be formed with fastening structures 110 to interface with the hub 200.
In some examples, the distance R1 of the air intake end of the blade structure 100 to the axis of the hub 200 is greater than or equal to 75mm and less than or equal to 180mm; the distance R2 from the air outlet end of the blade structure 100 to the axis of the hub 200 is greater than or equal to 90mm and less than or equal to 230mm; the distance from the air outlet end of the blade structure 100 to the outer edge of the hub 200 is less than or equal to 5mm, and the distance R2 from the air outlet end of the blade structure 100 to the axis of the hub 200 is less than or equal to the radius R3 of the hub 200.
In the technical scheme, the range of the distance R1 from the air inlet end of the blade structure 100 to the axis of the hub 200 and the range of the distance R2 from the air outlet end of the blade structure 100 to the axis of the hub 200 are limited, so that the distribution range of the blade structure 100 on the hub 200 can be restrained, and a relatively long gas flow passage can be formed between the adjacent blade structures 100, thereby facilitating the utilization of the blade structure 100 to apply work to gas in practical application, accelerating the gas flow, and improving the air quantity and the air pressure; through setting up the distance that the air-out end of blade structure 100 was less than or equal to 5mm to the outer fringe of wheel hub 200, and set up the distance R2 of the air-out end of blade structure 100 to the wheel hub 200 axis and be less than or equal to wheel hub 200's radius R3, can prevent that the blade from following the radial for wheel hub 200 evagination of wheel hub 200, on the one hand be convenient for follow-up with the amount of wind assembly in the casing of fan, reduce the possibility that the structure interfered in the assembly process, on the other hand also can prevent to take place to collide with between blade structure 100 and the external structure at wind wheel 10 rotation in-process, be favorable to reducing the possibility that blade structure 100 damaged, reduce the maintenance cost of wind wheel 10.
As shown in fig. 8, in some examples, the distance S between two adjacent blade structures 100 is greater than or equal to 6mm and less than or equal to 20mm.
In the technical scheme, the distance S between two adjacent blade structures 100 can be set to be larger than or equal to 6mm and smaller than or equal to 20mm, so that based on the arrangement, on one hand, the situation that the distance between the two adjacent blade structures 100 is too small can be avoided, a gas flow channel with relatively large width can be formed between the adjacent blade structures 100, the resistance when the gas flows through the blade structures 100 is reduced, the air quantity and static pressure of a fan to which the wind wheel 10 belongs are improved, and the energy consumption of the fan is reduced; on the other hand, under the condition that the structural size of the hub 200 is set, the total number of the blade structures 100 arranged on the hub 200 can be restrained based on the limitation of the distance S, so that the excessive or insufficient number of the blade structures 100 is avoided, the excessive weight of the wind wheel 10 caused by the excessive number of the blade structures 100 is prevented while the output air quantity of the wind wheel 10 is ensured, the light weight level of the wind wheel 10 can be improved, the energy consumption for driving the wind wheel 10 to rotate is further saved, and the efficiency of a fan to which the wind wheel 10 belongs is further improved.
As shown in fig. 6 and 8, in some examples, wind wheel 10 further includes: the hub 400 is provided to the hub 200.
In this technical scheme, wind wheel 10 may further include a shaft sleeve 400 disposed on hub 200, and it may be appreciated that shaft sleeve 400 is disposed coaxially with hub 200, and in practical application, hub 200 may be abutted to an output shaft of a driving device through shaft sleeve 400 to receive power output by the driving device, so that based on the setting of shaft sleeve 400, wind wheel 10 may be conveniently abutted to the driving device, and use convenience and operational reliability of wind wheel 10 are improved.
In addition, since the wind turbine 10 provided in the embodiment of the present application includes the blade structure 100 as set forth in any one of the first aspect, all the beneficial effects of the blade structure 100 are provided, and will not be described herein.
As shown in fig. 11 and 12, according to a third aspect of the embodiment of the present application, there is provided a fan, including: a scroll case 20, the scroll case 20 being formed with a centrifugal air duct; a wind wheel 10 as set forth in any of the second aspects above is disposed within a centrifugal wind tunnel.
The fan provided by the embodiment of the application includes a volute 20 and a wind wheel 10 set forth in any one of the above second aspects, where the volute 20 is formed with a centrifugal air channel, the wind wheel 10 is disposed in the centrifugal air channel and can rotate relative to the volute 20, so that in the process of rotation of the wind wheel 10, air can be conveyed to the centrifugal air channel, air can be accelerated and pressurized in the centrifugal air channel under the driving of the wind wheel 10, and then the air pressure and flow output by the fan are improved, so that the fan can output air flow with a certain pressure to the outside, and air supply operation is performed.
In some possible examples, the fan may further comprise a driving device for driving the wind wheel 10 to rotate.
In addition, since the fan provided in the embodiment of the present application includes the wind wheel 10 set forth in any one of the second aspect, all the beneficial effects of the wind wheel 10 are provided, and the description thereof is omitted herein.
According to a fourth aspect of the embodiments of the present application, there is provided an air conditioner, including: a fan as claimed in any one of the above third aspects.
Because the air conditioner provided in the embodiment of the present application includes the fan set forth in any one of the third aspect, the air conditioner has all the beneficial effects of the fan, and the details are not repeated here.
In the present utility model, 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, 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 utility model 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 utility model.
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 utility model. 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 is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (14)
1. A blade structure is characterized in that,
the blade structure is made of sheet metal, and the blade center line of the blade structure comprises a conical curve section.
2. The blade structure of claim 1, wherein the blade midline further comprises:
the straight line segment is connected with one end of the conical curve segment, and the straight line segment and the conical curve segment are in smooth transition;
the straight line section is close to the air outlet end of the blade structure, and the conical curve section is close to the air inlet end of the blade structure.
3. A blade structure as claimed in claim 2, characterized in that,
the straight line segment is tangent to the conical curve segment.
4. A blade structure as claimed in claim 2, characterized in that,
the ratio of the length of the straight line segment to the chord length of the conical curve segment is less than or equal to 0.2.
5. A blade structure according to any one of claims 1 to 4,
the eccentricity of the blade center line is greater than or equal to 0.25 and less than or equal to 0.6; and/or
The air inlet angle of the blade structure is greater than or equal to 50 degrees and less than or equal to 75 degrees; and/or
The air outlet angle of the blade structure is more than or equal to 135 degrees and less than or equal to 170 degrees; and/or
The center angle of the blade structure is greater than or equal to 3 ° and less than or equal to 8 °.
6. A blade structure according to any one of claims 1 to 4,
the thickness of the blade structure is consistent along the direction from the air inlet end of the blade structure to the air outlet end of the blade structure.
7. The blade structure as claimed in claim 6, characterized in that,
the ratio of the thickness of the blade structure to the chord length of the conical curve section is less than or equal to 0.15.
8. A wind turbine, comprising:
a hub;
a plurality of blade structures according to any one of claims 1 to 7, penetrating the hub, the plurality of blade structures being arranged at intervals along the circumference of the hub;
and one end of the blade structure is connected with the tire.
9. The wind wheel according to claim 8, wherein,
the blade structure is connected with the tire through a fastening structure.
10. The wind wheel according to claim 8, wherein,
the distance from the air inlet end of the blade structure to the axis of the hub is more than or equal to 75mm and less than or equal to 180mm;
the distance from the air outlet end of the blade structure to the axis of the hub is more than or equal to 90mm and less than or equal to 230mm;
the distance from the air outlet end of the blade structure to the outer edge of the hub is less than or equal to 5mm, and the distance from the air outlet end of the blade structure to the axis of the hub is less than or equal to the radius of the hub.
11. The wind wheel according to claim 8, wherein,
the distance between two adjacent blade structures is greater than or equal to 6mm and less than or equal to 20mm.
12. A wind rotor according to any of claims 9-11, further comprising:
and the shaft sleeve is arranged on the hub.
13. A blower, comprising:
the spiral case is provided with a centrifugal air duct;
a wind wheel according to any of claims 9 to 12, disposed within the centrifugal wind tunnel.
14. An air conditioner, comprising:
the blower of claim 13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320006020.4U CN219366386U (en) | 2023-01-03 | 2023-01-03 | Blade structure, wind wheel, fan and air conditioner |
| PCT/CN2023/100134 WO2024146079A1 (en) | 2023-01-03 | 2023-06-14 | Volute, fan, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320006020.4U CN219366386U (en) | 2023-01-03 | 2023-01-03 | Blade structure, wind wheel, fan and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219366386U true CN219366386U (en) | 2023-07-18 |
Family
ID=87147846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320006020.4U Active CN219366386U (en) | 2023-01-03 | 2023-01-03 | Blade structure, wind wheel, fan and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219366386U (en) |
-
2023
- 2023-01-03 CN CN202320006020.4U patent/CN219366386U/en active Active
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