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CN-224214431-U - Wind wheel structure with diversion cone

CN224214431UCN 224214431 UCN224214431 UCN 224214431UCN-224214431-U

Abstract

The application discloses a wind wheel structure with a flow guide cone, which comprises a cylinder, the flow guide cone, main blades and a stabilizing ring, wherein the flow guide cone is a thin-shell rotary body with an equal wall thickness, the thin-shell rotary body is formed by sequentially and smoothly connecting a first arc section, a second arc section, a straight line section and a third arc section, an outer contour line formed by the flow guide cone in a circle rotates around the axis of the cylinder, the outer contour line is gradually far away from the axis of the cylinder from the starting end of the first arc section to the ending point of the third arc section, the starting end of the first arc section and the inner wall of the thin-shell rotary body forming the flow guide cone are intersected with the surface of the cylinder, the main blades are uniformly distributed on the circumference of the large end of the flow guide cone and extend towards the cylinder, the main blades are longitudinally parallel to the axis of the flow guide cone, the first arc section is used for forming an air inlet area with a flaring, the second arc section is used for increasing the air flow rate, the straight line section and the third arc section form an air flow guide area, and the stabilizing ring is in a circular structure and is sleeved on the outgoing side of the main blades and is positioned near one end of the cylinder in the axial direction.

Inventors

  • ZHANG YONGHONG
  • CHEN FENGZAO
  • CAO ZHONGQIANG
  • ZHANG HONG

Assignees

  • 温州匠诚汽车零部件有限公司

Dates

Publication Date
20260508
Application Date
20250717

Claims (8)

  1. 1. A wind turbine structure having a flow cone, comprising: A column (5), The thin shell rotator with the same wall thickness is formed by rotating an outer contour line formed by sequentially and smoothly connecting a first arc section (401), a second arc section (402), a straight line section (403) and a third arc section (404) around the axis of the cylinder (5) for one circle, wherein the outer contour line is gradually far away from the axis of the cylinder (5) from the starting end of the first arc section (401) to the ending point of the third arc section (404); The main blades (2) are uniformly distributed on the circumference of the large end of the diversion cone (4) and extend towards the column body (5), and the longitudinal direction of the main blades (2) is parallel to the axis of the diversion cone (4); the first arc section (401) is used for forming an air inlet area with a flaring, the second arc section (402) is used for forming a gas compression area for increasing the flow rate of gas flowing to the main blade (2), and the straight line section (403) and the third arc section (404) form a gas diversion area; The stabilizing ring (1) is formed on the throwing side of the main blade (2) in a sleeved mode and is axially positioned at one end close to the cylinder (5).
  2. 2. Wind turbine structure with a flow cone according to claim 1, characterized in that the flow cone (4) further has a straight section (405) extending radially perpendicular to the axis of the cylinder (5), which straight section (405) is tangential to the third arc section (404) end.
  3. 3. Wind turbine structure with a flow cone according to claim 2, characterized in that the main blades (2) are formed in the straight section (405) and that the rotor side edges of the main blades (2) are flush with the edges of the straight section (405), the suction side edges extending radially at least to the region of the third arc section (404).
  4. 4. Wind turbine structure with a flow cone according to claim 2, further comprising a rear blade (3) formed on the other side of the straight section (405) with respect to the main blade (2).
  5. 5. Wind wheel structure with a diversion cone according to claim 1, characterized in that the cylinder (5) is formed with a through hole (6) along its own axis for connection with a motor shaft (7).
  6. 6. The wind wheel structure with the diversion cone according to claim 2, further comprising a plurality of reinforcing fins (8) which extend radially from the surface of the column (5) and are connected with the inner wall of the diversion cone (4) and are arranged in a vortex mode, wherein the reinforcing fins (8) are uniformly distributed around the circumference of the axis of the column (5), and additional fins (9) are further formed on the inner wall of the diversion cone (4) between any two adjacent reinforcing fins (8).
  7. 7. The wind wheel structure with the diversion cone according to claim 1, wherein if the radius of the side edge of the main blade (2) at the throwing side is X, the first arc section (401) is a concave arc with the radius of 1.15X, the second arc section (402) is a convex arc with the radius of 0.63X, the included angle B between the straight line section (403) and the axis of the column (5) is 19-20 degrees, and the third arc section (404) is a concave arc with the radius of 0.16X.
  8. 8. The wind turbine structure with the flow guiding cone according to claim 7, wherein the length of the main blade (2) is set to be Z, the axis of the cylinder (5) and the end face, close to the cylinder (5), of the main blade (2) are respectively used as a radial reference and an axial reference, the intersection point of the starting end of the first arc section (401) and the outer circular surface of the cylinder (5) is higher than the distance Z3=0.0625Z of the axial reference, the position of the tail end point of the first arc section (401) is the distance X1=0.45Z from the radial reference, the distance Z1=0.375Z from the axial reference in the axial direction, and the position of the starting point of the straight line section (403) is the distance X2=0.72X from the radial reference and the distance Z2=0.76Z from the axial reference.

Description

Wind wheel structure with diversion cone Technical Field The application relates to the technical field of fans, in particular to a wind wheel structure with a diversion cone. Background The centrifugal fan is a mechanical structure which utilizes mechanical energy input by a motor to drive blades to rotate to finish gas conveying work, a wind wheel of the traditional centrifugal fan is composed of a round flat plate and a plurality of blades circumferentially distributed on the round flat plate, a large space is formed in the middle of the wind wheel, the centrifugal fan has the defects that the gravity center of the wind wheel is far away from the position of the round flat plate as power input, the gravity center of the wind wheel is far away from the bearing position of a motor main shaft to cause a cantilever to be overlong, unbalanced load abrasion to a motor bearing is large, and turbulent flow is easily formed in an air inlet space to cause low vibration and air supply efficiency of the fan, so that further research, development and improvement are necessary. Disclosure of Invention The application aims to provide a wind wheel structure with a diversion cone, which solves the problems in the prior art. In order to achieve the above purpose, the application provides a wind wheel structure with a diversion cone, comprising: The cylindrical body 5 is provided with a plurality of holes, The guide cone 4 is a thin-shell rotator with equal wall thickness, which is formed by sequentially and smoothly connecting a first arc section 401, a second arc section 402, a straight line section 403 and a third arc section 404 and is formed by rotating around the axis of the cylinder 5 for one circle, wherein the outer contour line is gradually far away from the axis of the cylinder 5 from the starting end of the first arc section 401 to the ending point of the third arc section 404; The main blades 2 are uniformly distributed on the circumference of the large end of the diversion cone 4 and extend towards the column 5, and the longitudinal direction of the main blades 2 is parallel to the axis of the diversion cone 4; The first arc section 401 is used for forming an air inlet area with a flaring, the second arc section 402 is used for forming a gas compression area for increasing the flow rate of gas flowing to the main blade 2, and the straight line section 403 and the third arc section 404 form a gas diversion area; The stabilizing ring 1 is formed on the throwing side of the main blade 2 in a sleeved mode and is located at one end, close to the cylinder 5, in the axial direction. Further, the guide cone 4 further has a straight section 405 extending radially perpendicular to the axis of the cylinder 5, and the straight section 405 is tangential to the end of the third arc section 404. Further, the main blade 2 is formed in the straight section 405 and the outlet side edge of the main blade 2 is flush with the edge of the straight section 405, and the suction side edge extends radially at least to the region of the third arc section 404. Further, the wind wheel structure with the diversion cone further comprises a rear blade 3 which is formed on the other side of the straight section 405 relative to the main blade 2. Further, a through hole 6 for connecting with a motor shaft 7 is formed in the column 5 along its own axis. Furthermore, the wind wheel structure with the diversion cone further comprises a plurality of reinforcing fins 8 which extend radially from the surface of the column 5, are connected with the inner wall of the diversion cone 4 and are arranged in a vortex mode, the reinforcing fins 8 are uniformly distributed around the circumference of the axis of the column 5, and additional fins 9 are further formed on the inner wall of the diversion cone 4 between any two adjacent reinforcing fins 8. Further, if the radius of the side edge of the main blade 2 is X, the first arc segment 401 is a concave arc with a radius of 1.15X, the second arc segment 402 is a convex arc with a radius of 0.63X, the included angle B between the straight line segment 403 and the axis of the cylinder 5 is 19-20 degrees, and the third arc segment 404 is a concave arc with a radius of 0.16X. Further, if the length of the main blade 2 is Z, and the axis of the cylinder 5 and an end surface of the main blade 2 near the cylinder 5 are respectively used as a radial reference and an axial reference, there are a distance z3=0.0625Z between the starting end of the first arc segment 401 and the outer circumferential surface of the cylinder 5, where the distance x1=0.45Z between the starting end of the first arc segment 401 and the radial reference is equal to the distance x1=0.375Z between the starting end of the first arc segment 401 and the axial reference, and a distance x2=0.72X between the starting end of the straight line segment 403 and the axial reference is equal to the distance x2=0.76Z between the starting end of the straig