CN109899319A - A kind of backward centrifugal wind wheel - Google Patents
A kind of backward centrifugal wind wheel Download PDFInfo
- Publication number
- CN109899319A CN109899319A CN201910275780.3A CN201910275780A CN109899319A CN 109899319 A CN109899319 A CN 109899319A CN 201910275780 A CN201910275780 A CN 201910275780A CN 109899319 A CN109899319 A CN 109899319A
- Authority
- CN
- China
- Prior art keywords
- wind wheel
- wheel
- root
- backward centrifugal
- centrifugal wind
- 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.)
- Pending
Links
- 238000011161 development Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 10
- 210000001364 upper extremity Anatomy 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 description 11
- 238000000926 separation method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of backward centrifugal wind wheels, using ternary twisted blade (3), forming curves L2 when each point when leading edge (31) is rotated along wind wheel axis L1 in leading edge (31) intersects with meridian plane A, each point on curve L2 is diameter D0 at a distance from wind wheel axis L1 first by being gradually reduced greatly, then by small and be gradually increased；The projection formed on the B of cylindrical surface with rear (32) forming curves L3, the coordinate (x of 5 curvature inflection points a, b, c, d, e in curve L3 after planar development againa, ya)、(xb, yb)、(xc, yc)、(xd, yd)、(xe, ye) meet following relationship: The total length wherein projected is Y, overall width X.It optimizes the flowing inside entire runner, promotes the aeroperformance of impeller surgingly, reduces the aerodynamic noise of impeller, promotes the noise quality of impeller.
Description
Technical field:
The present invention relates to a kind of backward centrifugal wind wheels.
Background technique:
Impeller in backward centrifugal blower is generally made of wheel disc, wheel cap, blade three parts, applies the dress in environment complexity
In machine, air inlet outlet complicated condition.The impeller blade of backward centrifugal blower is designed generally according to two-dimension theory.Impeller is general
It being made of wheel disc, wheel cap, blade three parts, wheel disc, wheel cap, blade are stamped to form respectively, and wheel disc, wheel cover Design Orientation hole,
Locating piece is set on blade, flattens and welds after locating piece is passed through location hole, final connection is an impeller.Above backward from
There are the following problems and disadvantage for heart wind wheel:
One, backward centrifugal blower is typically mounted in the device with this wind wheel, and inlet air conditions are complicated；Two-dimension theory design
Binary blade cannot be well adapted for complicated air inlet environment, form side at the pressure face or suction surface near vane inlet
Boundary's separation, the diffusion that the air inlet environment of deterioration seriously affects gas in entire runner flow, the performance degradation of final impeller,
Level of noise increases, noise low quality.
Two, the conventional backward centrifuge blade of two-dimension theory design cooperates disk cover molded line appropriate, usually at impeller outlet,
Region near wheel cap and suction surface is easy to produce boundary separation, causes impeller outlet speed uneven, and noise increases.
Three, when the not whole depanning of the processing technology of impeller, wheel disc, wheel cap, blade are added in a manner of punching press respectively
Work forms, by the location hole on wheel cap, wheel disc impeller outer wall position, then to the locating piece on blade with rivet flatten,
Then the mode welded reinforces fastening force, and blade takes welding manner to connect with the junction of wheel cap inner wall.Wherein blade is determined
Position block is integrated between blade, tight.Disadvantage: 1, when vane thickness larger, when flattening the locating piece on blade, external force mistake
Greatly, blade, the wheel cap, wheel sections deformation near locating piece are easily caused, deviates former design parameter, the performance of impeller is generated negative
Face is rung；2, locating piece is difficult to flatten, and there are gap on the outside of locating piece and impeller, is unfavorable for reinforcing fastening force, Yi Songdong；3, no
Easily positioning, after the locating piece of blade is driven plain, only realizes axially position, and there are two freedom degrees to be difficult to control, and has resulted in blade
Deviate former design position；4, complex procedures.
Summary of the invention:
The first object of the present invention is to provide a kind of backward centrifugal wind wheel, solves in the prior art due to backward centrifugal wind wheel
The technical issues of binary blade technology degraded performance of two-dimension theory design, level of noise is high, noise low quality.
The purpose of the present invention is what is be achieved by following technical proposals:
A kind of backward centrifugal wind wheel, if the wheel disc including being located at bottom, the wheel cap positioned at top and dry plate ternary distort leaf
Piece, wheel cap center are equipped with air inlet, if installing dry plate ternary twisted blade, adjacent two ternarys twisted blade between wheel disc and wheel cap
Between form air duct, air duct outer edge formed air outlet, the ternary twisted blade include leading edge, rear, upper limb and
Lower edge, it is characterised in that: the face that wind wheel axis L1 is crossed in setting one is meridian plane A, leading edge when leading edge is rotated along wind wheel axis L1
On each point forming curves L2 when intersecting with meridian plane A, each point and wind wheel axis L1 on the curve L2 on meridian plane A
Distance is diameter D0, is looked from air inlet direction, and diameter D0 is first by being gradually reduced greatly, then by small and be gradually increased；With rear
Maximum outside diameter be that rotating diameter around wind wheel axis L1 rotation is formed by cylindrical surface B, on the rear of the ternary twisted blade
The light that is issued via wind wheel axis L1 of each point radially irradiation is projected on the B of cylindrical surface, the projection formed on the B of cylindrical surface is again
Forming curves L3 after planar development selects 5 curvature inflection point a, b, c, d, e, 5 curvature inflection point a, b, c, d, e in curve L3,
Coordinate (the x of 5 curvature inflection points a, b, c, d, ea, ya)、(xb, yb)、(xc, yc)、(xd, yd)、(xe, ye) meet following relationship:
The total length wherein projected is Y, overall width X.
For the upper limb of the ternary twisted blade toward several first location and installation blocks are protruding with, the wheel cap setting is several
A the first mounting hole corresponding with the first location and installation block position, the first location and installation block passes through the first mounting hole and riveted makes
Edge is connected with wheel cap；The lower edge of the ternary twisted blade is protruding with several second location and installation blocks, the wheel down
Several the second mounting holes corresponding with the second location and installation block position are arranged in disk, and the second location and installation block passes through the second mounting hole
And riveted connects lower edge with wheel disc.
Wheel cap includes the cylindrical portion for being located at air inlet periphery, is located in the middle arc mounting portion and up tilts positioned at periphery
Reinforcement ring part.
The suction surface of ternary twisted blade protrudes the cross reinforcing of several interval layouts toward pressure face direction.
Wheel disc includes top plate, the circular cone tilted down and the annular flange protruded down from circular cone outer edge,
Top plate intermediate recess has a mounting platform, is provided with motor installing hole among the bottom surface of mounting platform.
If wheel disc, wheel cap and dry plate ternary twisted blade are metal material manufactures.
Ternary twisted blade is formed by the metal plate punch process of uniform thickness.
First location and installation block includes the first root and the first top, and the two sides of the first root have the first groove, and first
Root, which passes through the first mounting hole and rotates the certain angle in the first top, realizes riveting；Second location and installation block includes the second root
With the second top, the two sides of the second root have the second groove, and the second root passes through the second mounting hole and rotates the second top one
Fixed angle realizes riveting.
First root passes through the first top of rotation after the first mounting hole, angle model of first top relative to the rotation of the first root
Enclosing is 10 degree to 60 degree of range；Second root passes through the second top of rotation after the second mounting hole, and the second top is second opposite
The angular range of portion's rotation is 10 degree to 60 degree of range.
The relationship of the thickness H2 of the height H1 and wheel cap of first groove is that the ratio range of H1/H2 is 0.9 to 1；Second is recessed
The relationship of the thickness H4 of the height H3 and wheel disc of slot is that the ratio range of H3/H4 is 0.9 to 1.
The relationship of the outer diameter D 2 of the outer diameter D 1 and wheel cap of wheel disc is equal or unequal.
Compared with prior art, the present invention having the effect that
1) impeller of the invention largely eliminates the gas segregation phenomenon of Ye Daonei, optimizes inside entire runner
Flowing, promotes the aeroperformance of impeller surgingly, reduces the aerodynamic noise of impeller, promote the noise quality of impeller.This impeller
Blade inlet edge at, angle and the changeable design of diameter are suitable for complicated impeller air-inlet condition, effectively elimination gas into
Boundary layer separation is formed because not being bonded vane type line at mouthful, especially in front of the blade at edge and pressure face or suction surface
Near region；At the trailing edge of this impeller, angle and the changeable design of diameter can optimize flowing of the gas in impeller
State effectively inhibits gas and forms boundary separation phenomenon because of diffusion in leaf road.
2) further advantage of the invention is in the partially unfolded detailed description of embodiment.
Detailed description of the invention:
Fig. 1 is the perspective view of an angle of backward centrifugal wind wheel of the invention；
Fig. 2 is another angle perspective view of backward centrifugal wind wheel of the invention；
Fig. 3 is the structural schematic diagram of meridian plane A in the present invention；
Fig. 4 is the structural schematic diagram of cylindrical surface B in the present invention；
Fig. 5 is the stereogram exploded view of wind wheel in the present invention；
Fig. 6 is the perspective view of ternary twisted blade in the present invention；
Fig. 7 is another angle perspective view of ternary twisted blade in the present invention；
Fig. 8 is the top view of wind wheel in the present invention；
Fig. 9 is the cross-sectional view of C-C in Fig. 8；
Figure 10 is the structural schematic diagram of blade in the present invention；
Figure 11 is the partial enlarged view of D in Figure 10；
Figure 12 is the partial enlarged view of E in Figure 10；
Figure 13 is the perspective view of the certain point of rear in Fig. 4；
Figure 14 is the schematic diagram being crossed to form after each point in leading edge rotates with meridian plane A；
Figure 15 is that each point on rear projects the schematic diagram formed after planar development on the B of cylindrical surface.
Specific embodiment:
Below by specific embodiment and in conjunction with attached drawing, the present invention is described in further detail.
Embodiment one:
As shown in Fig. 1 to Figure 15, the present embodiment provides a kind of backward centrifugal wind wheels, including being located at the wheel disc 1 of bottom, being located at
If the wheel cap 2 at top and dry plate ternary twisted blade 3,2 center of wheel cap is equipped with air inlet 21, if installing between wheel disc 1 and wheel cap 2
Dry plate ternary twisted blade 3 forms air duct 4 between adjacent two ternarys twisted blade 3, and the outer edge in air duct 4 forms air outlet
41, the ternary twisted blade 3 includes leading edge 31, rear 32, upper limb 33 and lower edge 34, it is characterised in that: wind is crossed in setting one
The face of wheel axis L1 is meridian plane A, and each point when leading edge 31 is rotated along wind wheel axis L1 in leading edge 31 intersects with meridian plane A
When forming curves L2, each point on the curve L2 on meridian plane A at a distance from wind wheel axis L1 be diameter D0, from air inlet 21
Direction is looked, and diameter D0 is first by being gradually reduced greatly, then by small and be gradually increased；Using the maximum outside diameter of rear 32 as rotating diameter
It is formed by cylindrical surface B around wind wheel axis L1 rotation, each point on the rear 32 of the ternary twisted blade 3 is via wind wheel axis
Radially irradiation is projected on the B of cylindrical surface the light that L1 is issued, the projection formed on the B of cylindrical surface forming curves after planar development again
L3 selects 5 curvature inflection point a, b, c, d, e, the coordinate (x of 5 curvature inflection points a, b, c, d, e in curve L3a, ya)、(xb,
yb)、(xc, yc)、(xd, yd)、(xe, ye) meet following relationship:
The total length wherein projected is Y, overall width X, and up-front angle and the changeable design of diameter are suitable for complexity
Impeller air-inlet condition effectively eliminates gas in entrance and forms boundary layer separation because not being bonded vane type line；Rear
Angle and the changeable design of diameter can optimize flow regime of the gas in impeller, effectively inhibit gas in leaf road because expansion
It presses and forms boundary separation phenomenon；Optimize the flowing inside entire runner, promote the aeroperformance of impeller surgingly, reduces impeller
Aerodynamic noise, promote the noise quality of impeller.
As shown in fig. 4 and 13, on the B of cylindrical surface assume have a section B0 that can move up and down along wind wheel axis L1, when cut
When face B0 is moved to some position, section B0 and wind wheel axis L1 crosspoint are O, and crosspoint O is the center of circle, section B0 and rear 32
Crosspoint be S, form the subpoint of rear in cylindrical surface B when the light issued from crosspoint O is radially irradiated to crosspoint S
S1 can be moved up and down along wind wheel axis L1 by section B0 in this way, can obtain throwing of each point on the B of cylindrical surface on rear 32
Shadow, the projection that each point on rear 32 is formed on the B of cylindrical surface forming curves L3 after planar development again.
As shown in figure 14, it is meridian plane A that the face of wind wheel axis L1 is crossed in setting one, when leading edge 31 is rotated along wind wheel axis L1
Forming curves L2 when each point in leading edge 31 intersects with meridian plane A, each point and rotor shaft on the curve L2 on meridian plane A
The distance of line L1 is diameter D0, is looked from 21 direction of air inlet, and diameter D0 is first by being gradually reduced greatly, then by small and gradually increase
Greatly.Up-front angle and the changeable design of diameter are suitable for complicated impeller air-inlet condition, effectively eliminate gas in entrance
Boundary layer separation is formed because not being bonded vane type line；
The upper limb 33 of the ternary twisted blade 3 is past to be protruding with several first location and installation blocks 331, the wheel cap 2
Several the first mounting holes 20 corresponding with 331 position of the first location and installation block are set, and the first location and installation block 331 passes through first
Simultaneously riveted connects upper limb 33 with wheel cap 2 to mounting hole 20；The lower edge 34 of the ternary twisted blade 3 is protruding with several down
Several the second installations corresponding with 340 position of the second location and installation block are arranged in second location and installation block 340, the wheel disc 1
Hole 11, the second location and installation block 340 passes through the second mounting hole 11 and riveted connects lower edge 34 with wheel disc 1, mounting structure
Simply, positioning is simple, and also while realizing circumferential direction, radially and circumferentially positioning.
Wheel cap 2 includes positioned at the peripheral cylindrical portion 22 of air inlet 21, is located in the middle arc mounting portion 23 and is located at periphery
The reinforcement ring part 24 up tilted, structure is simple, and structural strength is big, is convenient for air flow guiding.
The suction surface 35 of ternary twisted blade 3 protrudes the cross reinforcing of several interval layouts toward 36 direction of pressure face
37, blade construction intensity is big.
Wheel disc 1 includes top plate 12, the circular cone 13 tilted down and the ring protruded down from 13 outer edge of circular cone
Shape flange 14,12 intermediate recess of top plate have a mounting platform 15, are provided with motor installing hole among the bottom surface of mounting platform 15
16, structure is simple, and structural strength is high, is unlikely to deform,.
If wheel disc 1, wheel cap 2 and dry plate ternary twisted blade 3 are metal material manufactures, structure is simple, handling ease.
Ternary twisted blade 3 is formed by the metal plate punch process of uniform thickness, and the processing is simple, simplifies structure, easy to produce
Manufacture.
First location and installation block 331 includes the first root 3311 and the first top 3312, the two sides band of the first root 3311
There is the first groove 3313, the first root 3311, which passes through the first mounting hole 20 and rotates the certain angle in the first top 3312, realizes riveting
It connects；Second location and installation block 340 includes the second root 341 and the second top 342, and the two sides of the second root 341 are recessed with second
Slot 343, the second root 341, which passes through the second mounting hole 11 and rotates the certain angle in the second top 342, realizes riveting.
The first above-mentioned root 3311 passes through the first top 3312 of rotation after the first mounting hole 20, and the first top 3312 is opposite
The angular range of first root 3311 rotation is 10 degree to 60 degree of range；Second root 341 passes through 11 back spin of the second mounting hole
Turn the second top 342, the angular range that opposite second root 341 in the second top 342 rotates is 10 degree to 60 degree of range.To
When the certain angle model of one root 3311 rotation, combine wheel cap 2 with wheel disc 1 closer, water desorplion is more preferable,
The relationship of the thickness H2 of the height H1 and wheel cap 2 of the first above-mentioned groove 3313 is that the ratio range of H1/H2 is 0.9
To 1；The relationship of the thickness H4 of the height H3 and wheel disc 1 of second groove 343 is that the ratio range of H3/H4 is 0.9 to 1, is made in this way
Wheel disc 1 is combined even closer with wheel cap 2, is not interspaced, and play up and down is avoided.
If wheel disc 1 of the invention, wheel cap 2 and dry plate ternary twisted blade 3 are in connection type, relatively primitive positioning rule
With the connection type of impeller, positioning is simple in modified version connection type of the invention, at the same realize it is axial, radially, circumferentially position；
In in modified version connection type, excessive external force is not needed to the rotation process of positioning rule, and be easy to operate, fastening force is reinforced；Change
Process flows, (the becoming 1 process from 2-3 original process) such as pressing, welding are reduced on into version connection type to reduce simultaneously
Process costs improve processing efficiency.
The relationship of the outer diameter D 2 of the outer diameter D 1 and wheel cap 2 of above-mentioned wheel disc 1 be it is equal or unequal, which can meet
Different complete machine environment, improves the aeroperformance of complete machine.
Above embodiments are better embodiment of the invention, and embodiments of the present invention are not limited thereto, other are any
Made changes, modifications, substitutions, combinations, simplifications without departing from the spirit and principles of the present invention are equivalent displacement side
Formula is included within the scope of the present invention.
Claims (11)
1. a kind of backward centrifugal wind wheel, including the wheel disc (1) positioned at bottom, the wheel cap (2) positioned at top if being turned round with dry plate ternary
Bent blade (3), wheel cap (2) center be equipped with air inlet (21), wheel disc (1) and wheel cap (2) if between installation dry plate ternary distortion leaf
Piece (3) forms air duct (4) between adjacent two ternarys twisted blade (3), and the outer edge in air duct (4) forms air outlet (41), institute
The ternary twisted blade (3) stated includes leading edge (31), rear (32), upper limb (33) and lower edge (34), it is characterised in that: setting one
The face for crossing wind wheel axis L1 is meridian plane A, each point and son when leading edge (31) is rotated along wind wheel axis L1 in leading edge (31)
Forming curves L2 when noon face A intersects is diameter D0 at a distance from wind wheel axis L1 in each point on the curve L2 on meridian plane A,
It looks from air inlet (21) direction, diameter D0 is first by being gradually reduced greatly, then by small and be gradually increased；With the maximum of rear (32)
Outer diameter, which rotates for rotating diameter around wind wheel axis L1, is formed by cylindrical surface B, on the rear (32) of the ternary twisted blade (3)
The light that is issued via wind wheel axis L1 of each point radially irradiation is projected on the B of cylindrical surface, the projection formed on the B of cylindrical surface is again
Forming curves L3 after planar development selects 5 curvature inflection point a, b, c, d, e, 5 curvature inflection points a, b, c, d, e in curve L3
Coordinate (xa, ya)、(xb, yb)、(xc, yc)、(xd, yd)、(xe, ye) meet following relationship:
The total length wherein projected is Y, overall width X.
2. a kind of backward centrifugal wind wheel according to claim 1, it is characterised in that: the ternary twisted blade (3) it is upper
For edge (33) toward several first location and installation blocks (331) are protruding with, several and the first location and installation are arranged in the wheel cap (2)
Corresponding first mounting hole (20) in block (331) position, the first location and installation block (331) passes through the first mounting hole (20) and riveted makes
Upper limb (33) is connected with wheel cap (2)；The lower edge (34) of the ternary twisted blade (3) is protruding with several second positioning down
Several the second mounting holes corresponding with the second location and installation block (340) position are arranged in mounting blocks (340), the wheel disc (1)
(11), the second location and installation block (340) passes through the second mounting hole (11) and riveted connects lower edge (34) with wheel disc (1).
3. a kind of backward centrifugal wind wheel according to claim 2, it is characterised in that: wheel cap (2) includes being located at air inlet
(21) peripheral cylindrical portion (22), the reinforcement ring part for being located in the middle arc mounting portion (23) and up being tilted positioned at periphery
(24)。
4. a kind of backward centrifugal wind wheel according to claim 1 or 2 or 3, it is characterised in that: ternary twisted blade (3)
Suction surface (35) protrudes the cross reinforcing (37) of several interval layouts toward pressure face (36) direction.
5. a kind of backward centrifugal wind wheel according to claim 1 or 2 or 3, it is characterised in that: wheel disc (1) includes top plate
(12), the circular cone (13) tilted down and the annular flange (14) protruded down from circular cone (13) outer edge, top plate
(12) intermediate recess has a mounting platform (15), is provided with motor installing hole (16) among the bottom surface of mounting platform (15).
6. a kind of backward centrifugal wind wheel according to claim 1 or 2 or 3, it is characterised in that: wheel disc (1), wheel cap (2) and
If dry plate ternary twisted blade (3) is metal material manufacture.
7. a kind of backward centrifugal wind wheel according to claim 6, it is characterised in that: ternary twisted blade (3) is by uniform thickness
Metal plate punch process form.
8. a kind of backward centrifugal wind wheel according to claim 6, it is characterised in that: the first location and installation block (331) includes
First root (3311) and the first top (3312), the two sides of the first root (3311) have the first groove (3313), and first
Portion (3311), which passes through the first mounting hole (20) and rotates the certain angle in the first top (3312), realizes riveting；Second location and installation
Block (340) includes the second root (341) and the second top (342), and the two sides of the second root (341) have the second groove (343),
Second root (341), which passes through the second mounting hole (11) and rotates the certain angle in the second top (342), realizes riveting.
9. a kind of backward centrifugal wind wheel according to claim 8, it is characterised in that: the first root (3311) pass through the first peace
It fills hole (20) and rotates the first top (3312) afterwards, the first top (3312) is relative to the angular range that the first root (3311) rotate
10 degree to 60 degree of range；Second root (341) passes through the second mounting hole (11) and rotates the second top (342), the second top afterwards
(342) angular range relative to the second root (341) rotation is 10 degree to 60 degree of range.
10. a kind of backward centrifugal wind wheel according to claim 9, it is characterised in that: the height H1 of the first groove (3313)
Relationship with the thickness H2 of wheel cap (2) is that the ratio range of H1/H2 is 0.9 to 1；The height H3 and wheel disc of second groove (343)
(1) relationship of thickness H4 is that the ratio range of H3/H4 is 0.9 to 1.
11. a kind of backward centrifugal wind wheel according to claim 1 or 2 or 3, it is characterised in that: the outer diameter D 1 of wheel disc (1) with
The relationship of the outer diameter D 2 of wheel cap (2) is equal or unequal.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275780.3A CN109899319A (en) | 2019-04-08 | 2019-04-08 | A kind of backward centrifugal wind wheel |
| MX2021010819A MX2021010819A (en) | 2019-04-08 | 2019-09-06 | Backward centrifugal fan. |
| PCT/CN2019/104618 WO2020206918A1 (en) | 2019-04-08 | 2019-09-06 | Backward centrifugal fan |
| US16/686,253 US11015611B2 (en) | 2019-04-08 | 2019-11-18 | Centrifugal impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275780.3A CN109899319A (en) | 2019-04-08 | 2019-04-08 | A kind of backward centrifugal wind wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109899319A true CN109899319A (en) | 2019-06-18 |
Family
ID=66954508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910275780.3A Pending CN109899319A (en) | 2019-04-08 | 2019-04-08 | A kind of backward centrifugal wind wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109899319A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374918A (en) * | 2019-07-31 | 2019-10-25 | 宁波方太厨具有限公司 | A kind of impeller and its control method for centrifugal blower |
| WO2020206918A1 (en) * | 2019-04-08 | 2020-10-15 | 中山宜必思科技有限公司 | Backward centrifugal fan |
| CN111828382A (en) * | 2020-07-10 | 2020-10-27 | 浙江科贸智能机电股份有限公司 | Impeller of bionic blade centrifugal ventilator |
| CN114738317A (en) * | 2022-05-10 | 2022-07-12 | 浙江尚扬通风设备有限公司 | Low-loss impeller assembly for centrifugal fan and fan with same |
| EP4018096A4 (en) * | 2019-08-20 | 2023-09-20 | Swegon Operations AB | Fan for air handling unit (ahu) assembled from several parts with radial and axial retainers |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204371773U (en) * | 2014-12-16 | 2015-06-03 | 宁波朗迪叶轮机械有限公司 | Centrifugal fan impeller |
| CN104822945A (en) * | 2013-05-10 | 2015-08-05 | Lg电子株式会社 | Centrifugal fan |
| CN105134658A (en) * | 2014-05-28 | 2015-12-09 | Lg电子株式会社 | Centrifugal fan |
| JP2016108994A (en) * | 2014-12-04 | 2016-06-20 | 株式会社Ihi | Compressor impeller, centrifugal compressor, and supercharger |
| US20170023001A1 (en) * | 2014-03-27 | 2017-01-26 | Lg Electronics Inc. | Centrifugal fan |
| CN107559235A (en) * | 2017-09-07 | 2018-01-09 | 佛山市南海九洲普惠风机有限公司 | A kind of fan blade and impeller of ternary distortion blower fan |
| JP2019019759A (en) * | 2017-07-18 | 2019-02-07 | 日本電産株式会社 | Centrifugal fan impeller and centrifugal fan with centrifugal fan impeller |
| CN209908841U (en) * | 2019-04-08 | 2020-01-07 | 中山宜必思科技有限公司 | Backward centrifugal wind wheel |
-
2019
- 2019-04-08 CN CN201910275780.3A patent/CN109899319A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822945A (en) * | 2013-05-10 | 2015-08-05 | Lg电子株式会社 | Centrifugal fan |
| US20170023001A1 (en) * | 2014-03-27 | 2017-01-26 | Lg Electronics Inc. | Centrifugal fan |
| CN105134658A (en) * | 2014-05-28 | 2015-12-09 | Lg电子株式会社 | Centrifugal fan |
| JP2016108994A (en) * | 2014-12-04 | 2016-06-20 | 株式会社Ihi | Compressor impeller, centrifugal compressor, and supercharger |
| CN204371773U (en) * | 2014-12-16 | 2015-06-03 | 宁波朗迪叶轮机械有限公司 | Centrifugal fan impeller |
| JP2019019759A (en) * | 2017-07-18 | 2019-02-07 | 日本電産株式会社 | Centrifugal fan impeller and centrifugal fan with centrifugal fan impeller |
| CN107559235A (en) * | 2017-09-07 | 2018-01-09 | 佛山市南海九洲普惠风机有限公司 | A kind of fan blade and impeller of ternary distortion blower fan |
| CN209908841U (en) * | 2019-04-08 | 2020-01-07 | 中山宜必思科技有限公司 | Backward centrifugal wind wheel |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020206918A1 (en) * | 2019-04-08 | 2020-10-15 | 中山宜必思科技有限公司 | Backward centrifugal fan |
| CN110374918A (en) * | 2019-07-31 | 2019-10-25 | 宁波方太厨具有限公司 | A kind of impeller and its control method for centrifugal blower |
| EP4018096A4 (en) * | 2019-08-20 | 2023-09-20 | Swegon Operations AB | Fan for air handling unit (ahu) assembled from several parts with radial and axial retainers |
| US11994145B2 (en) | 2019-08-20 | 2024-05-28 | Swegon Operations Ab | Fan for air handling unit (AHU) assembled from several parts with radial and axial retainers |
| CN111828382A (en) * | 2020-07-10 | 2020-10-27 | 浙江科贸智能机电股份有限公司 | Impeller of bionic blade centrifugal ventilator |
| CN111828382B (en) * | 2020-07-10 | 2022-04-22 | 浙江科贸智能机电股份有限公司 | Impeller of bionic blade centrifugal ventilator |
| CN114738317A (en) * | 2022-05-10 | 2022-07-12 | 浙江尚扬通风设备有限公司 | Low-loss impeller assembly for centrifugal fan and fan with same |
| CN114738317B (en) * | 2022-05-10 | 2024-03-26 | 浙江尚扬通风设备有限公司 | Impeller assembly for low-loss centrifugal fan and fan with impeller assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109899319A (en) | A kind of backward centrifugal wind wheel | |
| CN104641121B (en) | Propeller type fan and possess the air conditioner of this propeller type fan | |
| CN102374193B (en) | Impeller for blower fan | |
| JP3204208B2 (en) | Mixed-flow blower impeller | |
| JP4094495B2 (en) | Francis-type runner | |
| CN109312758A (en) | Impeller and axial flow fan | |
| CN201679745U (en) | Low-noise axial flow fan for cooling air conditioner | |
| CN110513329B (en) | Axial-flow wind wheel and air conditioner with same | |
| JP2003148395A (en) | Impeller of air-conditioning fan | |
| WO2020206918A1 (en) | Backward centrifugal fan | |
| JP4910534B2 (en) | Blower impeller | |
| CN101328903A (en) | Forward multiple-wing fan of air conditioner | |
| CN208793271U (en) | Impeller, centrifugal blower and range hood for centrifugal blower | |
| CN209908841U (en) | Backward centrifugal wind wheel | |
| WO2020082913A1 (en) | Centrifugal fan blade assembly, centrifugal fan, and air conditioner | |
| JP3453093B2 (en) | Axial blower | |
| CN208935011U (en) | Centrifugal fan blade, centrifugal fan and air conditioner | |
| CN212429296U (en) | High-speed impeller | |
| JP5310404B2 (en) | Multi-blade blower | |
| CN107023513A (en) | Axial-flow windwheel and air conditioner | |
| CN209586721U (en) | Axial flow blower and air processor with it | |
| CN113738695A (en) | High-performance centrifugal impeller with parabolic front edge blades for breathing machine | |
| TWI755333B (en) | Impeller and fan with the same | |
| JPH08303391A (en) | Axial fan | |
| CN210317938U (en) | FFU high-efficiency impeller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |