CN219366385U - Blade structure, wind wheel, fan and air conditioner - Google Patents
Blade structure, wind wheel, fan and air conditioner Download PDFInfo
- Publication number
- CN219366385U CN219366385U CN202320005933.4U CN202320005933U CN219366385U CN 219366385 U CN219366385 U CN 219366385U CN 202320005933 U CN202320005933 U CN 202320005933U CN 219366385 U CN219366385 U CN 219366385U
- Authority
- CN
- China
- Prior art keywords
- blade
- blade structure
- curve
- fan
- equal
- 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
Classifications
-
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
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 application embodiment provided is conical curve, blade structure's camber can change in extending direction, at the in-process that gas flows along blade structure, more do benefit to blade structure to gas acting, and drive gas flows, 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 plastic materials to make, be convenient for control blade structure's molding in the production process, can reduce blade structure's processing degree of difficulty and processing cost, plastic materials's blade structure can possess good structural strength after the shaping, be favorable to guaranteeing life when saving blade structure's material cost.
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 plastic, the blade center line of the blade structure being a conic section.
In one possible embodiment, the cross-sectional profile of the blade structure comprises:
a leading edge curve through which one end of the blade centerline passes;
wherein the ratio of the camber of the leading edge curve to the chord length of the leading edge curve is greater than or equal to 0.3 and less than or equal to 0.8.
In one possible embodiment, the cross-sectional profile of the blade structure further comprises:
an outlet end line through which one end of the blade midline away from the leading edge end curve passes;
the positive pressure surface curve is positioned on one side of the center line of the blade, and two ends of the positive pressure surface curve are respectively connected with the front edge end curve and the outlet end line;
the negative pressure surface curve is positioned on the other side of the blade center line, and two ends of the negative pressure surface curve are respectively connected with the front edge end curve and the outlet end line;
wherein, positive pressure surface curve and negative pressure surface curve are streamline curve.
In one possible embodiment, the cross-sectional profile of the blade structure further comprises:
the outlet transition line is connected between the outlet end line and the positive pressure surface curve;
wherein the outlet transition line is an arc line.
In one possible embodiment, the distance of the positive pressure surface curve from the blade midline is the same as the distance of the negative pressure surface curve from the blade midline.
In one possible embodiment, the eccentricity of the blade centerline is greater than or equal to 0.3 and less than or equal to 0.6; and/or
The air inlet angle of the blade structure is larger than or equal to 60 degrees and smaller than or equal to 85 degrees; and/or
The air outlet angle of the blade structure is greater than or equal to 140 degrees and less than or equal to 166 degrees; and/or
The center angle of the vane structure is greater than or equal to 3 ° and less than or equal to 6 °.
In one possible embodiment, the thickness of the vane structure increases and then decreases in the direction from the inlet end of the vane centerline to the outlet end of the vane centerline.
In one possible embodiment, the ratio of the distance from the maximum thickness position of the blade structure to the air inlet end of the blade midline to the length of the blade midline is greater than or equal to 0.2 and less than or equal to 0.4 along the extension of the blade midline.
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 tire, hub and blade structures are a unitary structure.
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 that this embodiment provided is conical curve, this blade structure can regard as a part of the wind wheel of fan in practical application, for example can install a plurality of blade structures on the wheel hub of wind wheel, so that each blade follows wheel hub and rotates, thereby the drive gas flows in order to realize the air supply, and based on the aforesaid setting, in practical application, the blade structure that this embodiment provided can wholly be conical curve's form extension, the curvature of blade structure can change in extending direction, at the in-process that gas along the blade structure flows, 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 ability of fan, reduce the possibility of fan stall, promote the performance of fan. Meanwhile, the blade structure provided by the embodiment of the application can be made of plastic materials, the plastic materials have good processing performance, the modeling of the blade structure can be controlled in the production process conveniently, the processing difficulty and the processing cost of the blade structure can be reduced, and the blade structure of the plastic materials can also have good structural strength after being formed, so that the material cost of the blade structure is saved, and the service life is guaranteed.
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 blade structure of one embodiment provided herein;
FIG. 2 is a schematic use scenario diagram of a blade structure of one embodiment provided herein;
FIG. 3 is a schematic partial enlarged view of region A of FIG. 2;
FIG. 4 is a schematic use effect diagram of a blade structure of an embodiment provided herein;
FIG. 5 is a schematic block diagram of a first view of a wind turbine according to one embodiment of the present application;
FIG. 6 is a schematic block diagram of a second perspective view of a wind turbine according to one embodiment provided herein;
FIG. 7 is a schematic block diagram of a third view of a wind turbine according to one embodiment of the present application;
FIG. 8 is a schematic block diagram of a first view of a blower of one embodiment provided herein;
fig. 9 is a schematic structural diagram of a second view of a wind turbine according to an embodiment of the present application.
The correspondence between the reference numerals and the component names in fig. 1 to 9 is:
10 wind wheels; a 20 volute;
a 100-leaf structure; a 200 hub; 300 tyre; 400 sleeves;
101 blade midline; 102 a leading edge curve; 103 outlet end line; 104 positive pressure surface curve; 105 negative pressure surface curves; 106 outlet transition line.
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 9, 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 plastic, and a blade center line 101 of the blade structure 100 being a conic.
According to the embodiment of the application, the blade center line 101 of the blade structure 100 is a conic curve, 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 gas to flow so as to realize air supply, and based on the arrangement, in practical application, the blade structure 100 provided by the embodiment of the application can integrally extend in the form of the conic curve, the curvature of the blade structure 100 can change in the extending direction, in the process that gas flows along the blade structure 100, the blade structure 100 is more beneficial to do work on the gas and drive the gas to flow, so that the gas flow resistance is reduced, the efficiency of the fan to which the blade belongs is improved, the power consumption of the fan is reduced, the static pressure capability of the fan is improved, the possibility of stalling of the fan is reduced, the service performance of the fan is improved, and the air quantity of the fan is increased.
It will be appreciated that the blade centerline 101 of the blade structure 100 may also be referred to as a blade line, as shown in FIG. 1, and that the cross-section of the blade structure 100 generally extends along a particular curve, which is the blade line, commonly referred to as the blade centerline 101 or blade line, depending on the different requirements of use, and that the form of the blade centerline 101 generally directly affects the efficiency of the fan to which the blade structure 100 belongs.
It will be appreciated that conic sections generally include hyperbolic, parabolic, or elliptical, with the blade line 101 of the blade structure 100 being conic, i.e., the blade line 101 of the blade structure 100 may be hyperbolic, parabolic, or elliptical; it will be appreciated that the blade form 100 is generally sized and that the blade midline 101 may be a curved segment, i.e., the blade form 100 provided in the embodiments of the present application may have a conical curved segment. If a rectangular coordinate system is established within the cross-section of the blade structure 100, then the general expression for the bladed centerline 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 blade centerline 101 is an elliptical arc; when B2-4ac=0, the blade centerline 101 is a parabolic segment; when B2-4 AC >0, the blade centerline 101 is a hyperbolic segment.
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 is a conical curve, so that on one hand, the curvature of the blade structure 100 can be changed in the extending direction, and in the process that the gas flows along the blade structure 100, the blade structure 100 is more beneficial to doing work on the gas and driving the gas to flow, thereby being beneficial to reducing the gas flow resistance, further improving the efficiency of the fan to which the blade belongs, reducing the power consumption of the fan, improving the static pressure capacity of the fan, reducing the possibility of stall of the fan, improving the service performance of the fan and increasing the air quantity of the fan; on the other hand, the curvature of the blade structure 100 can be ensured to be continuous, 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 continuously, 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.
As shown in table 1 and fig. 4, table 1 shows a comparison graph of air volume and power consumption of a fan with different blade structures 100, and it can be seen that, when the same air volume is output, the fan adopts the blade structure 100 with the blade center line 101 being a conic curve provided in the embodiment of the present application, so that smaller power consumption can be generated, and further, the efficiency of the fan is greatly improved, and the blade structure 100 is beneficial to improving the air volume of the fan under the condition of equal energy consumption; in the air volume lifting process of the fan, the blade structure 100 with the conical curve of the blade center line 101 provided by the embodiment of the application can ensure that the power consumption of the fan is at a relatively low level, so that the use performance of the blade structure 100 can be maintained under high air volume static pressure, the possibility of stall phenomenon of the fan is reduced, and the performance of the fan can be improved.
Table 1 air volume-power consumption comparison
Meanwhile, the blade structure 100 provided by the embodiment of the application can be made of plastic materials, the plastic materials have good processing performance, the modeling of the blade structure 100 can be controlled in the production process conveniently, the processing difficulty and the processing cost of the blade structure 100 can be reduced, and the blade structure 100 made of plastic materials can also have good structural strength after being formed, so that the material cost of the blade structure 100 is saved, and the service life is guaranteed.
In some possible examples, the blade structure 100 may be made of polypropylene or ABS (Acrylonitrile Butadiene Styrene copolymers; acrylonitrile-butadiene-styrene) plastic or AS (Acrylonitrile-Styrene copolymer; styrene-Acrylonitrile copolymer) plastic.
Equation (1) can be rewritten as equation (3):
in some possible examples, the conic section expression of the blade structure 100 may be determined by formula (3), and may be set in formula (3), -a/f= -6.3732×10 -5 ，-B/F＝-5.5531*10 -6 ，-C/F＝-8.3930*10 -5 ，-D/F＝-1.9100*10 -3 ，-E/F＝-1.8491*10 -2 X is greater than or equal to 0 and less than or equal to 8.298 and y is greater than or equal to 104.135 and less than or equal to 124.999.
As shown in fig. 1, in some examples, the cross-sectional profile of the blade structure 100 includes: a leading edge curve 102, one end of the blade centerline 101 passing through the leading edge curve 102; wherein the ratio of the camber of the leading-edge curve 102 to the chord length of the leading-edge curve 102 is greater than or equal to 0.3 and less than or equal to 0.8.
In this technical solution, the cross-sectional profile of the blade structure 100 may include a front edge curve 102, where one end of the blade center line 101 passes through the front edge curve 102, it may be understood that the form of the front edge curve 102 may affect the form of the front edge end surface of the blade structure 100, that is, the air inlet end in practical application, of the blade structure 100, and correspondingly, the one end of the blade center line 101 passing through the front edge curve 102, that is, the air inlet end of the blade center line 101, by setting the ratio of the camber of the front edge curve 102 to the chord length to be greater than or equal to 0.3 and less than or equal to 0.8, it may be beneficial to the performance of the wind turbine 10 to which the blade structure 100 belongs in the high-efficiency interval, reduce the power consumption of the wind turbine, further promote the service performance of the wind turbine, and also beneficial to reduce the noise of the wind turbine in use, improve the user's sense of the product, and promote the user experience of the product.
It will be understood that, as shown in fig. 1, the leading-edge curve 102 is a convex curve, two ends of the leading-edge curve 102 are located at two sides of the blade center line 101, that is, in practical application, two ends of the leading-edge curve 102 are located at the positive pressure side and the negative pressure side of the blade structure 100, when the blade is driving gas to flow, the gas will flow from one end of the leading-edge curve 102 to the other end of the blade structure 100, correspondingly, the end of the blade structure 100 opposite to the leading-edge curve 102 is the air outlet end of the blade structure 100, and the end of the blade center line 101 far from the leading-edge curve 102 is the air outlet end of the blade center line 101; the chord length of the front end curve 102, that is, the length of the connection line between the two ends of the front end curve 102; the camber of the leading-edge curve 102, i.e., the maximum perpendicular distance of the leading-edge curve 102 from the chord line.
In some possible examples, the leading edge curve 102 may be, but is not limited to, a circular arc, an elliptical arc, a hyperbolic curve, or a parabolic curve.
In some possible examples, the ratio of the camber of the leading-edge curve 102 to the chord length of the leading-edge curve 102 may be equal to 0.6.
As shown in fig. 1, in some examples, the cross-sectional profile of the blade structure 100 further includes: an outlet end line 103, an end of the blade center line 101 remote from the leading edge end curve 102 passing through the outlet end line 103; a positive pressure surface curve 104 located at one side of the blade center line 101, wherein both ends of the positive pressure surface curve 104 are respectively connected to the leading edge end curve 102 and the outlet end line 103; the negative pressure surface curve 105 is positioned on the other side of the blade center line 101, and two ends of the negative pressure surface curve 105 are respectively connected with the front edge end curve 102 and the outlet end line 103; wherein, positive pressure surface curve 104 and negative pressure surface curve 105 are both streamline curves.
In this technical solution, the cross-sectional profile of the blade structure 100 may further include an outlet end line 103, a positive pressure surface curve 104 and a negative pressure surface curve 105, where a section of the blade center line 101 away from the front edge end curve 102 passes through the outlet end line 103, it is understood that the form of the outlet end line 103 can affect the form of the outlet end surface of the blade structure 100, and the outlet end of the blade structure 100 is the air outlet end in practical application, and accordingly, the blade center line 101 passes through one end of the outlet end line 103 is the air outlet end of the blade center line 101; the positive pressure surface curve 104 and the negative pressure surface curve 105 are located on two sides of the blade center line 101, respectively, and it is understood that the positive pressure surface curve 104 and the negative pressure surface curve 105 can be used to affect the positive pressure side curved surface form and the negative pressure side curved surface form of the blade structure 100, respectively, and two ends of the positive pressure surface curve 104 and two ends of the negative pressure surface curve 105 are connected to the leading edge end curve 102 and the outlet end line 103, respectively, so that the leading edge curve 102, the outlet end line 103, the positive pressure surface curve 104 and the negative pressure surface curve 105 can be utilized to enclose the cross-sectional profile of the blade structure 100. Meanwhile, the positive pressure surface curve 104 and the negative pressure surface curve 105 are streamline curves, so that in practical application, resistance of the positive pressure side and the negative pressure side of the blade structure 100 to gas flow can be reduced, driving efficiency of the blade to gas can be improved, further fan efficiency is improved, fan energy consumption is saved, air quantity and static pressure of the fan are improved, and service performance of the fan is improved.
In some examples, the cross-sectional profile of the blade structure 100 further includes:
an outlet transition line 106 connected between the outlet end line 103 and the positive pressure surface curve 104;
wherein the outlet transition line 106 is an arcuate line.
In this technical scheme, the cross-sectional profile of the blade structure 100 may further include an outlet transition line 106 connected between the outlet end line 103 and the positive pressure surface curve 104, so that the outlet transition line 106 may be utilized to connect the outlet end line 103 and the positive pressure surface curve 104, and the outlet transition line 106 is an arc line, so that excessive smoothness between the outlet end line 103 and the positive pressure surface curve 104 may be further ensured, severe noise generated at the air outlet end of the blade structure 100 due to sharp angles may be prevented, and the airflow guiding effect at the air outlet end near the positive pressure side of the blade structure 100 may be improved, the positive pressure side airflow velocity at the air outlet end of the blade structure 100 may be improved, the stress concentration phenomenon at the air outlet end of the blade structure 100 may be improved, the service life of the blade structure 100 may be prolonged, and the maintenance cost of the blade structure 100 may be reduced.
It will be appreciated that where the cross-sectional profile of the blade structure 100 includes the aforementioned outlet transition line 106, the cross-sectional profile of the blade structure 100 is bounded by the leading edge curve 102, the outlet end line 103, the outlet transition line 106, the positive pressure surface curve 104, and the negative pressure surface curve 105.
It will be appreciated that the smooth connection between the outlet transition line 106 and the positive pressure surface curve 104 may promote curvature continuity at the junction of the outlet transition line 106 and the positive pressure surface curve 104, which may facilitate reducing gas flow rate losses of the blade structure 100.
As shown in fig. 1, in some examples, the distance of positive pressure surface curve 104 to blade centerline 101 is the same as the distance of negative pressure surface curve 105 to blade centerline 101.
In this technical solution, the distance from the positive pressure surface curve 104 to the blade center line 101 may be the same as the distance from the negative pressure surface curve 105 to the blade center line 101, so that the symmetry of the thickness distribution of the blade structure 100 on both sides of the blade center line 101 may be improved, which is favorable to improving the structural strength of the blade structure 100, improving the balance and stability of the blade structure 100 in practical application, being favorable to improving the stress condition of the blade structure 100, and prolonging the service life of the blade structure 100.
It should be noted that, in the cross section of the vane structure 100 shown in fig. 1, a plurality of inscribed circles tangential to the positive pressure surface curve 104 and the negative pressure surface curve 105 are drawn, the centers of the inscribed circles are all located on the vane centerline 101, the diameter of each inscribed circle may be used to represent the vane thickness at the corresponding center position, and the radius of each inscribed circle may be used to represent the distance from the positive pressure surface curve 104 to the vane centerline 101 and the distance from the negative pressure surface curve 105 to the vane centerline 101 at the corresponding center position.
As shown in fig. 2 and 3, in some examples, the eccentricity e of the blade centerline 101 is greater than or equal to 0.3 and less than or equal to 0.6; and/or
The inlet angle β1 of the blade structure 100 is greater than or equal to 60 ° and less than or equal to 85 °; and/or
The air outlet angle beta 2 of the blade structure 100 is greater than or equal to 140 degrees and less than or equal to 166 degrees; and/or
The central angle α of the blade structure 100 is greater than or equal to 3 ° and less than or equal to 6 °.
As shown in fig. 2, 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. 3, 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. 2, 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.
It should be noted that, for convenience of exhibiting the foregoing parameters, some of the blade structures 100 in fig. 2 and 3 are schematically represented by a blade center line 101.
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 in the blade structure 100 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.
In some possible examples, the eccentricity e of the blade centerline 101 may be equal to 0.45; the inlet angle β1 of the vane structure 100 may be equal to 75 °; the outlet angle β2 of the blade structure 100 may be equal to 153 °; the central angle α of the blade structure 100 may be equal to 4.6 °.
As shown in fig. 1, in some examples, the thickness of the blade structure 100 increases and decreases in a direction from an inlet end of the blade center line 101 to an outlet end of the blade center line 101.
In this technical scheme, along the direction of the air inlet end of blade central line 101 to the air outlet end of blade central line 101, can set up the thickness of blade structure 100 and increase earlier and then reduce, thereby can make blade structure 100 produce thickness variation by the direction of air inlet end to air outlet end, and then be convenient for make blade structure 100's malleation side and negative pressure side present streamlined structure, and can make blade structure 100's thickness distribution form the imitate to fish thickness distribution to a certain extent, be favorable to in practical application, reduce blade structure 100 to the flow resistance of gas, reduce the speed loss of gas flow, promote the efficiency of the fan that blade structure 100 belongs to, increase the amount of wind and the static pressure of fan, save the energy consumption of fan, strengthen the performance of fan, simultaneously based on the aforesaid setting, also be favorable to reducing blade structure 100 in practical application the noise of fan improves the user experience of product.
In some examples, a ratio of a distance from a maximum thickness position of the blade structure 100 to an air inlet end of the blade midline 101 to a length of the blade midline 101 along an extension of the blade midline 101 is greater than or equal to 0.2 and less than or equal to 0.4.
In this technical solution, along the extending direction of the blade center line 101, that is, along the direction from the air inlet end of the blade center line 101 to the air outlet end of the blade center line 101, the distance from the maximum thickness position of the blade structure 100 to the air inlet end of the blade center line 101 may be set, and the ratio of the distance to the length of the blade center line 101 is greater than or equal to 0.2 and less than or equal to 0.4, it may be understood that, in combination with the foregoing, the thickness of the blade structure 100 increases and decreases after the thickness of the blade structure 100 is increased along the direction from the air inlet end of the blade center line 101 to the air outlet end of the blade center line 101, so that the thickness of the blade structure 100 may reach the maximum at a certain position of the blade center line 101.
In some possible examples, the maximum thickness of the blade structure 100 may be greater than or equal to 1mm and less than or equal to 6mm, so that on one hand, the thickness of the blade structure 100 is prevented from being too small, the strength of the blade structure 100 is guaranteed, the stress performance of the blade structure 100 is improved, on the other hand, the blade structure 100 is prevented from being too large, the excessive load generated in practical application is prevented, and the energy consumption of a fan to which the blade structure 100 belongs is reduced.
As shown in fig. 5 to 7, 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 the 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 flow by using the blade structures 100 to realize air supply, the blade structures 100 may be integrally extended in a conical curve, curvature of each blade structure 100 may 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 gas and drive gas flow, thereby helping to reduce gas flow resistance, and further improve efficiency of a fan to which the blade belongs, reduce power consumption of the fan, and improve static pressure capability of the fan, reduce possibility of stall, and increase performance of the fan.
Meanwhile, the blade structure 100 provided by the embodiment of the application can be made of plastic materials, the plastic materials have good processing performance, the modeling of the blade structure 100 can be controlled in the production process conveniently, the processing difficulty and the processing cost of the blade structure 100 can be reduced, and the blade structure 100 made of plastic materials can also have good structural strength after being formed, so that the material cost of the blade structure 100 is saved, and the service life is guaranteed.
As shown in fig. 5 and 6, 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.
In some examples, the tire 300, hub 200, and blade structure 100 are a unitary structure.
In this technical scheme, aforementioned rim 300, wheel hub 200 and blade structure 100 can be integrated into one piece's structure to at the in-process of wind wheel 10 processing, can make wind wheel 10 through integrated into one piece's mode, reduce the assembly degree of difficulty of wind wheel 10, and be favorable to promoting the joint strength between rim 300, wheel hub 200 and the blade structure 100, further promote the stability of wind wheel 10 when the operation, and prolong the life of wind wheel 10, also can reduce the possibility of taking place not hard up between rim 300, wheel hub 200 and the blade structure 100 simultaneously, be favorable to further reducing the vibration noise when wind wheel 10 operates, improve the user experience of product.
As shown in fig. 7, 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. 8 and 9, according to a third aspect of the embodiment of the present application, a fan is provided, 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 (13)
1. A blade structure is characterized in that,
the blade structure is made of plastic, and the blade center line of the blade structure is a conical curve.
2. The blade structure of claim 1, wherein the cross-sectional profile of the blade structure comprises:
a leading edge curve through which one end of the blade centerline passes;
wherein the ratio of the camber of the leading edge curve to the chord length of the leading edge curve is greater than or equal to 0.3 and less than or equal to 0.8.
3. The blade structure of claim 2, wherein the cross-sectional profile of the blade structure further comprises:
an outlet end line through which an end of the blade centerline remote from the leading edge end curve passes;
the positive pressure surface curve is positioned on one side of the center line of the blade, and two ends of the positive pressure surface curve are respectively connected with the front edge end curve and the outlet end line;
the negative pressure surface curve is positioned at the other side of the blade center line, and two ends of the negative pressure surface curve are respectively connected with the front edge end curve and the outlet end line;
wherein, positive pressure surface curve and negative pressure surface curve are streamlined curve.
4. A blade structure according to claim 3, wherein the cross-sectional profile of the blade structure further comprises:
the outlet transition line is connected between the outlet end line and the positive pressure surface curve;
wherein the outlet transition line is an arc line.
5. The blade structure as claimed in claim 4, characterized in that,
the distance from the positive pressure surface curve to the blade center line is the same as the distance from the negative pressure surface curve to the blade center line.
6. A blade structure according to any one of claims 1 to 5,
the eccentricity of the blade center line is greater than or equal to 0.3 and less than or equal to 0.6; and/or
The air inlet angle of the blade structure is larger than or equal to 60 degrees and smaller than or equal to 85 degrees; and/or
The air outlet angle of the blade structure is greater than or equal to 140 degrees and less than or equal to 166 degrees; and/or
The center angle of the blade structure is greater than or equal to 3 degrees and less than or equal to 6 degrees.
7. A blade structure according to any one of claims 1 to 5,
and the thickness of the blade structure is increased and then reduced along the direction from the air inlet end of the blade center line to the air outlet end of the blade center line.
8. The blade structure as claimed in claim 7, characterized in that,
and along the extending direction of the blade center line, the ratio of the distance from the maximum thickness position of the blade structure to the air inlet end of the blade center line to the length of the blade center line is greater than or equal to 0.2 and less than or equal to 0.4.
9. A wind turbine, comprising:
a hub;
a plurality of blade structures according to any one of claims 1 to 8, 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.
10. The wind wheel according to claim 9, wherein,
the tire, the hub and the blade structure are of an integrated structure.
11. A wind rotor according to claim 9 or 10, further comprising:
and the shaft sleeve is arranged on the hub.
12. A blower, comprising:
the spiral case is provided with a centrifugal air duct;
a wind wheel according to any of claims 9 to 11, disposed within the centrifugal wind tunnel.
13. An air conditioner, comprising:
the blower of claim 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320005933.4U CN219366385U (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 |
|---|---|---|---|
| CN202320005933.4U CN219366385U (en) | 2023-01-03 | 2023-01-03 | Blade structure, wind wheel, fan and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219366385U true CN219366385U (en) | 2023-07-18 |
Family
ID=87140066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320005933.4U Active CN219366385U (en) | 2023-01-03 | 2023-01-03 | Blade structure, wind wheel, fan and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219366385U (en) |
-
2023
- 2023-01-03 CN CN202320005933.4U patent/CN219366385U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201560963U (en) | High-efficiency axial flow fan | |
| CN108252949A (en) | Mixed flow wind wheel and flow-mixing blower fan | |
| CN210290259U (en) | Impeller, fan and motor | |
| CN202326414U (en) | Axial flow fan | |
| CN109404305B (en) | Bionic blade volute-free centrifugal ventilator | |
| CN109595197B (en) | Fan | |
| CN205173055U (en) | Low noise that trailing edge is buckled does not have spiral case fan wheel | |
| CN110285094A (en) | It is a kind of to plunder formula blade for the curved of axial flow blower | |
| CN213450988U (en) | Centrifugal impeller and ventilator thereof | |
| CN219366385U (en) | Blade structure, wind wheel, fan and air conditioner | |
| CN109595198B (en) | Fan impeller | |
| CN118293096A (en) | Blade structure, wind wheel, fan and air conditioner | |
| CN219366386U (en) | Blade structure, wind wheel, fan and air conditioner | |
| CN109707666A (en) | Super high power type draught fan impeller | |
| CN113404711B (en) | Barrel-type axial flow fan | |
| CN211174768U (en) | Sweepback type blade for axial flow fan | |
| CN214036249U (en) | Axial flow fan impeller with sweep angle type blades | |
| CN212177503U (en) | Axial flow fan with 0.5 hub ratio | |
| CN210068564U (en) | Integrated fan with flow guide hub structure | |
| CN113982992A (en) | Current collector, centrifugal fan and air conditioning system | |
| CN209761806U (en) | Fan assembly and air conditioner outdoor unit with same | |
| CN209539585U (en) | A kind of bionic blade is without spiral case centrifugal fan | |
| CN116066402A (en) | Centrifugal fan impeller and air conditioner | |
| CN113738695A (en) | High-performance centrifugal impeller with parabolic front edge blades for breathing machine | |
| CN118293095A (en) | Blade structure, wind wheel, fan and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |