CN110107514A - Centrifugal fan and fan wheel thereof - Google Patents
Centrifugal fan and fan wheel thereof Download PDFInfo
- Publication number
- CN110107514A CN110107514A CN201810160050.4A CN201810160050A CN110107514A CN 110107514 A CN110107514 A CN 110107514A CN 201810160050 A CN201810160050 A CN 201810160050A CN 110107514 A CN110107514 A CN 110107514A
- Authority
- CN
- China
- Prior art keywords
- centrifugal fan
- wheel hub
- flabellum
- impeller
- connection ring
- 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
- 241000883990 Flabellum Species 0.000 claims description 77
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 230000001151 other effect Effects 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000001737 promoting effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000010415 tropism Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A centrifugal fan and a fan wheel thereof are used for solving the problem that the operation noise of the prior centrifugal fan is difficult to reduce. The centrifugal fan of the present invention includes: a base having a shaft tube; the stator group is arranged on the periphery of the shaft tube; the fan wheel is provided with a rotating shaft connected with a hub, the rotating shaft is rotatably arranged on the shaft tube, and a plurality of fan blades are annularly arranged on the periphery of the hub; wherein each fan blade is provided with a highest top edge, and each highest top edge is higher than the top edge of the hub; the outer edges of the fan blades form a maximum outer diameter, and the ratio of the outer diameter of the hub to the maximum outer diameter is greater than 0.4 and less than or equal to 0.5.
Description
Technical field
The present invention relates to a kind of centrifugal fan and its impeller more particularly to a kind of no outline border can direct-assembling in such as reach in freezer
Or centrifugal fan and its impeller in the systems such as refrigerator.
Background technique
Fig. 1, Fig. 2 are please referred to, is a kind of existing centrifugal fan 9, which has a pedestal 91, one
A impeller 92 and a stator pack 93, the pedestal 91 have a center pillar 911, which has the connection of shaft 921 one
A wheel hub 922, the shaft 921 are rotatably disposed within the center pillar 911, and multiple flabellums 923 connect the wheel hub 922 by one end respectively
Outer surface, the stator pack 93 are set to the periphery of the center pillar 911.The pedestal 91 can be assembled directly and be positioned by the existing centrifugal fan 9
In the systems such as such as reach in freezer or refrigerator, with by the rotation of the impeller 92, what drive air-flow was opened up from system casing enters
Air port flows into internal system, then the air outlet opened up from system casing is discharged outside to.Similar to the existing centrifugal fan 9
Multiple embodiments have been disclosed in TaiWan, China and disclose No. 200838396, bulletin I 530777 and I 529309 etc.
In Patent Case.
However, since 923 apical margin of each flabellum of the existing centrifugal fan 9 is all with the apical margin of the wheel hub 922 the same as high or low
In the apical margin of the wheel hub 922, so that the apical margin of the wheel hub 922 can be rushed at first after air-flow enters the rotating range of the impeller 92,
Just is disturbed by multiple flabellum 923 and flow to side；Accordingly, the running noise of the existing centrifugal fan 9 has all the time
The bottleneck being difficult to decrease.In addition, through experiments, it was found that, the problem of not only air-flow rushes at 922 apical margin of wheel hub, in the impeller 92
Other component kenels and dimension scale other than the shaft 921 also all can cause different degrees of influence to running noise.
In view of this, existing centrifugal fan still has improvedd necessity really.
Summary of the invention
To solve the above problems, the stream of air-flow can be promoted the purpose of the present invention is to provide a kind of centrifugal fan and its impeller
Dynamic smooth degree, to reduce running noise.
Centrifugal fan of the invention a, comprising: pedestal, the pedestal have a central siphon；One stator pack, the stator pack are set
In the periphery of the central siphon；And there is a shaft to connect a wheel hub for an impeller, the impeller, which is rotatably disposed within this
Central siphon, multiple flabellums are located on the periphery of the wheel hub；Wherein, each flabellum has a highest apical margin, and each highest apical margin is higher by this
The apical margin of wheel hub；The outer rim of multiple flabellum forms a maximum outside diameter, and the outer diameter of the wheel hub and the ratio of the maximum outside diameter are big
In 0.4 and be less than or equal to 0.5.
Accordingly, centrifugal fan of the invention, can be by making the highest apical margin of each flabellum be higher by the apical margin of wheel hub, and makes impeller
In other components other than shaft maintain specific kenel and dimension scale, guide air-flow when to promoting centrifugal fan running
The smooth degree of flowing effectively reaches reduction running noise and other effects.
Wherein, which has an axially-extending portion, and the outer diameter of the wheel hub is the outer diameter of the axially-extending portion.In this way,
The simple structure of the wheel hub and can be convenient for manufacture and assembling, having reduces manufacturing cost and promotes assembling convenience and other effects.
Wherein, in the axial direction of the shaft, the highest apical margin of the apical margin of the wheel hub and each flabellum at a distance of an axial spacing,
Each flabellum has a maximum axial height, which is not more than the half of the maximum axial height.In this way, can have
Have and more preferably guides air-flow and reduce running noise and other effects.
Wherein, which has an extension disk and a connection ring, which connects the wheel hub and along the shaft
Radially extend, the root edge of multiple flabellum connects the extension disk, the connection ring connect multiple flabellum and with the extension disk
Separately.Multiple flabellum and other effects is consolidated in this way, having.
Wherein, the shaft radially, the maximum outside diameter of multiple flabellum is less than or equal to the outer diameter of the connection ring.Such as
This, can make the non-bulging connection ring of the outer rim of each flabellum, have and the connection ring is avoided to influence the function such as the wind effect of each flabellum
Effect.
Wherein, multiple flabellum and connection ring integrated molding are connected, and it is more that the internal diameter of the connection ring is greater than or equal to this
The outer diameter of a flabellum root edge.It promotes manufacture convenience in this way, having and ensures that finished product can be smoothly from mould and other effects.
Wherein, the inner peripheral surface of the connection ring is connected to the outer rim of multiple flabellum.So, it can be ensured that the connection ring is set not
It will affect air inlet.
Wherein, which is equipped at least one counterweight tank.In this way, the counterweight tank can be used to accommodate counterweight part, tool
There are the smooth rotation degree that can promote the impeller and smoothness and other effects.
Wherein, which has a substrate, which is set to the substrate, the substrate have an opposite upper surface and
One lower surface, the substrate axially correspond in the range of the impeller in closed, are connected to the upper surface not with the lower surface.
In this way, unnecessary air-flow loss and flow-disturbing phenomenon can be reduced, has and promote airflow smooth degree and reduce running noise and other effects.
Wherein, which has a substrate, which is set to the substrate, which is equipped with multiple in the periphery of the substrate
Lug, each lug are equipped with a location hole, and each lug is combined with an elastic cushion, which coats the upper and lower table of the lug
Face and not exclusively cover the location hole.In this way, the pedestal to be assembled to the pre-determined bit being located in system casing using locking part
It sets, and the system casing is amplexiformed to absorb vibration by the elastic cushion, having improves vibrating noise and other effects.
The present invention also provides a kind of impellers of centrifugal fan comprising: a shaft；One wheel hub, the wheel hub connect this turn
Axis；And multiple flabellums, multiple flabellum are located on the periphery of the wheel hub；Wherein, each flabellum has a highest apical margin, each highest
Apical margin is higher by the apical margin of the wheel hub；The outer rim of multiple flabellum forms a maximum outside diameter, outside the outer diameter of the wheel hub and the maximum
The ratio of diameter is greater than 0.4 and is less than or equal to 0.5.In this way, having reduces running noise and other effects.
Wherein, which has an axially-extending portion, and the outer diameter of the wheel hub is the outer diameter of the axially-extending portion.In this way,
The simple structure of the wheel hub and can be convenient for manufacture and assembling, having reduces manufacturing cost and promotes assembling convenience and other effects.
Wherein, in the axial direction of the shaft, the highest apical margin of the apical margin of the wheel hub and each flabellum at a distance of an axial spacing,
Each flabellum has a maximum axial height, which is not more than the half of the maximum axial height.In this way, can have
Have and more preferably guides air-flow and reduce running noise and other effects.
Wherein, which has an extension disk and a connection ring, which connects the wheel hub and along the shaft
Radially extend, the root edge of multiple flabellum connects the extension disk, the connection ring connect multiple flabellum and with the extension disk
Separately.Multiple flabellum and other effects is consolidated in this way, having.
Wherein, the shaft radially, the maximum outside diameter of multiple flabellum is less than or equal to the outer diameter of the connection ring.Such as
This, can make the non-bulging connection ring of the outer rim of each flabellum, have and the connection ring is avoided to influence the function such as the wind effect of each flabellum
Effect.
Wherein, multiple flabellum and connection ring integrated molding are connected, and it is more that the internal diameter of the connection ring is greater than or equal to this
The outer diameter of a flabellum root edge.It promotes manufacture convenience in this way, having and ensures that finished product can be smoothly from mould and other effects.
Wherein, the inner peripheral surface of the connection ring is connected to the outer rim of multiple flabellum.So, it can be ensured that the connection ring is set not
It will affect air inlet.
Wherein, which is equipped at least one counterweight tank.In this way, the counterweight tank can be used to accommodate counterweight part, tool
There are the smooth rotation degree that can promote the impeller and smoothness and other effects.
Detailed description of the invention
A kind of Fig. 1: schematic perspective view of existing centrifugal fan.
A kind of Fig. 2: schematic cross-sectional view of existing centrifugal fan.
Fig. 3: the schematic perspective view of one embodiment of centrifugal fan of the present invention.
Fig. 4: the schematic cross-sectional view of one embodiment of centrifugal fan of the present invention.
Fig. 5: the schematic perspective view of one embodiment of impeller of the present invention.
Description of symbols
﹝ this Fa Ming ﹞
1 pedestal, 11 substrate
The upper surface the 11a lower surface 11b
12 central siphon, 13 lug
131 location holes
2 stator pack, 21 iron core
22 coil groups
3 impeller, 31 shaft
32 wheel hub, 321 axially-extending portion
33 flabellum, 331 highest apical margin
332 outer rim, 333 root edge
34 magnetic parts 35 extend disk
36 connection ring, 361 inner peripheral surface
362 counterweight tanks
4 elastic cushions
D1 maximum outside diameter d1 outer diameter
2 internal diameter of D2 outside diameter d
D3 outer diameter H maximum axial height
H axial spacing
﹝ Xian You Ji Shu ﹞
9 centrifugal fan, 91 pedestal
911 center pillar, 92 impeller
921 shaft, 922 wheel hub
923 flabellum, 93 stator pack.
Specific embodiment
To enable above and other objects, features and advantages of the invention to be clearer and more comprehensible, hereafter spy is enumerated of the invention
Preferred embodiment, and cooperate attached drawing, it is described in detail below:
Present invention directionality as described below or its approximate term, for example, "front", "rear", " upper (top) ", " under (bottom) ", "inner",
"outside", " side " etc., mostly in reference to the direction of attached drawing, each side's tropism or its approximate term are only to aid in illustrating and understand this
Each embodiment of invention, is not intended to limit the invention.
Referring to figure 3., Fig. 4 is a preferred embodiment of centrifugal fan of the present invention, which generally includes a base
1, stator pack 2 of seat and an impeller 3, the stator pack 2 and the impeller 3 are assembled in the pedestal 1.
The pedestal 1 has a substrate 11 and a central siphon 12, which can be in conjunction with the substrate 11, or preferably makes
The central siphon 12 is connected with the substrate 11 integrated molding, and then simplifies the structural complexity of the pedestal 1.In addition, the one of the central siphon 12
In open shape, the other end is then preferably in closed at end, to prevent the lubricating fluid that injects in the central siphon 12 from the bottom of the central siphon 12
Leakage.
The pedestal 1 can also be equipped with multiple lugs 13 in the periphery of the substrate 11, and each lug 13 is equipped with a location hole 131,
Each lug 13 is combined with an elastic cushion 4(such as rubber pad), which coats the upper and lower surfaces of the lug 13, but maintains
The location hole 131 is not completely obscured.In this way, each location hole 131 is passed through using locking part (such as screw, figure are not painted),
The pedestal 1 assembling is located in the predetermined position in such as reach in freezer or refrigerator system casing (figure is not painted), and by the elasticity
Pad 4 amplexiforms the system casing to absorb vibration, and generated vibration when centrifugal fan of the present invention running is made to be not easy conduction to system shell
Body, the generated vibration of when system operation is also not easy conduction to the pedestal 1, therefore can effectively improve vibrating noise problem.
The stator pack 2 is set to the periphery of the central siphon 12, which can drive the impeller 3 to rotate to be various
Structure design；Such as but without limitation, the present embodiment may be selected for the stator pack 2 to be arranged the periphery wall for being incorporated into the central siphon 12,
And the stator pack 2 includes the coil group 22 that an iron core 21 and winding are incorporated into the iron core 21.
Referring to figure 4., Fig. 5, the impeller 3 have 31, wheel hubs 32 of a shaft, multiple flabellums 33 and a magnetic part
34, which is rotatably disposed within the central siphon 12, which connects the shaft 31, and multiple flabellum 33 is located on the wheel hub
32 periphery, the magnetic part 34 are then set on the inner surface of the wheel hub 32 and opposite with the iron core of the stator pack 2 21；Whereby, this is fixed
Subgroup 2 is powered behind generation magnetic field, can drive 3 spinning movement of impeller.Wherein, the substrate 11 of the pedestal 1 has opposite one
A upper surface 11a and lower surface 11b, the substrate 11 is axial to be corresponded in the range of the impeller 3 preferably in closed, is made on this
Surface 11a is not connected to lower surface 11b, to reduce unnecessary air-flow loss and flow-disturbing phenomenon, it is ensured that air-flow can be smooth
Ground is oriented to side, and has the function of reducing running noise.
In more detail, each flabellum 33 has a highest apical margin 331, and the highest apical margin 331 of each flabellum 33 is higher by the wheel
The apical margin of hub 32, so that after air-flow enters the rotating range of the impeller 3, it, can be by this before the apical margin for rushing at the wheel hub 32
Multiple flabellums 33 disturb and flow to side, so as to promoting the smooth degree of guiding air-flow flowing, and and can reduce running noise.Tool
For body, in the axial direction of the shaft 31, the highest apical margin 331 of the apical margin of the wheel hub 32 and each flabellum 33 is between an axial direction
Away from h, and there is each flabellum 33 a maximum axial height H, axial spacing h to be preferably not more than the two of maximum axial height H
/ mono-, it more preferably guides air-flow to reach and reduces running noise and other effects.
In addition, the outer rim 332 of multiple flabellum 33 forms a maximum outside diameter D1, the outer diameter D 2 and the maximum of the wheel hub 32
The ratio (D2/D1) of outer diameter D 1 is preferably greater than 0.4 and less than or equal to 0.5, can reach reduction running noise effect the most apparent
Fruit.Wherein, which has an axially-extending portion 321, and the outer diameter D 2 of the aforementioned wheel hub 32 is the axially-extending portion 321
Outer diameter.
The impeller 3 of the present embodiment also has an extension disk 35 and a connection ring 36, which connects the wheel hub
32 and along the radially extension of the shaft 31, the root edge 333 of multiple flabellum 33 is connected to the extension disk 35；The connection ring 36
Then connect multiple flabellum 33 and with the extension disk 35 separately, to consolidate multiple flabellum 33.Wherein, in the shaft 31
Radially, the maximum outside diameter D1 of multiple flabellum 33 be preferably less than or equal to the connection ring 36 outside diameter d 1, make each flabellum 33
Non-bulging connection ring 36 of outer rim 332, so as to the wind effect for avoiding influencing each flabellum 33 because connection ring 36 are arranged.Cause
This, the outer rim 332 of each flabellum 33 can be in flat as shown in the figure, or from top to bottom towards 32 direction of wheel hub inclination etc., originally
Invention is without restriction.In particular, being connected when selection is integrally formed multiple flabellum 33 and the connection ring 36 to be promoted
When manufacturing convenience, the internal diameter d2 of the connection ring 36 is preferably made to be greater than or equal to the outer diameter D 3 of multiple 33 root edge 333 of flabellum, with
Finished product after ensuring ejection formation can be smoothly from mould.
In addition, the inner peripheral surface 361 of the connection ring 36 is preferably connected to the outer rim 332 of multiple flabellum 33, so as to ensuring this
The setting of connection ring 36 will not influence air inlet, and the connection ring 36 connects and is preferably set as leading camber state at each flabellum 33, so as to adding
Intensity at strong ties, and can avoid easy rhegma at this.The connection ring 36 can also be equipped at least one counterweight tank 362, the counterweight
Slot 362 can be used to accommodate counterweight part, so as to adjusting the counterweight of the impeller 3, thus promoted the impeller 3 smooth rotation degree and
Smoothness.
It, can be by making the highest apical margin of each flabellum be higher by the top of wheel hub in conclusion centrifugal fan and its impeller of the invention
Edge, and other components in impeller other than shaft is made to maintain specific kenel and dimension scale, to promote the centrifugal fan
The smooth degree that air-flow flowing is guided when running effectively reaches reduction running noise and other effects.
Although the present invention is illustrated using above-mentioned preferred embodiment, its protection model being not intended to limit the invention
It encloses, anyone skilled in the art are not departing within the spirit and scope of the present invention, and opposite above-described embodiment carries out various changes
It is dynamic that the range that the present invention is protected, therefore, what protection scope of the present invention should be defined with claims are still fallen with modification
Subject to.
Claims (18)
1. a kind of centrifugal fan, characterized in that it comprises:
One pedestal, the pedestal have a central siphon；
One stator pack, the stator pack are set to the periphery of the central siphon；And
There is a shaft to connect a wheel hub for one impeller, the impeller, which is rotatably disposed within the central siphon, multiple flabellums
It is located on the periphery of the wheel hub；
Wherein, each flabellum has a highest apical margin, and each highest apical margin is higher by the apical margin of the wheel hub；The outer rim shape of multiple flabellum
At a maximum outside diameter, the outer diameter of the wheel hub and the ratio of the maximum outside diameter are greater than 0.4 and are less than or equal to 0.5.
2. centrifugal fan as described in claim 1, which is characterized in that the wheel hub has an axially-extending portion, the wheel hub it is outer
Diameter is the outer diameter of the axially-extending portion.
3. centrifugal fan as described in claim 1, which is characterized in that in the axial direction of the shaft, the apical margin of the wheel hub and each fan
The highest apical margin of leaf is at a distance of an axial spacing, and each flabellum has a maximum axial height, and the axial spacing is most no more than this
The half of big axial height.
4. centrifugal fan as described in claim 1, which is characterized in that the impeller has an extension disk and a connection ring, should
Extend disk and connect the wheel hub and the radially extension along the shaft, the root edge of multiple flabellum connects the extension disk, the connection
Ring connect multiple flabellum and with the extension disk separately.
5. centrifugal fan as claimed in claim 4, which is characterized in that the shaft radially, the maximum of multiple flabellum is outer
Diameter is less than or equal to the outer diameter of the connection ring.
6. centrifugal fan as claimed in claim 5, which is characterized in that multiple flabellum and connection ring integrated molding are connected,
The internal diameter of the connection ring is greater than or equal to the outer diameter of multiple flabellum root edge.
7. centrifugal fan as claimed in claim 5, which is characterized in that the inner peripheral surface of the connection ring is connected to the outer of multiple flabellum
Edge.
8. centrifugal fan as claimed in claim 4, which is characterized in that the connection ring is equipped at least one counterweight tank.
9. centrifugal fan as described in claim 1, which is characterized in that the pedestal has a substrate, which is set to the substrate,
The substrate has opposite a upper surface and a lower surface, which axially corresponds in the range of the impeller in closing
Shape is connected to the upper surface not with the lower surface.
10. centrifugal fan as described in claim 1, which is characterized in that the pedestal has a substrate, which is set to the base
Plate, the pedestal are equipped with multiple lugs in the periphery of the substrate, and each lug is equipped with a location hole, and each lug is combined with an elasticity
Pad, the elastic cushion coat the upper and lower surfaces of the lug and not exclusively cover the location hole.
11. a kind of impeller of centrifugal fan, characterized in that it comprises:
One shaft；
One wheel hub, the wheel hub connect the shaft；And
Multiple flabellums, multiple flabellum are located on the periphery of the wheel hub；
Wherein, each flabellum has a highest apical margin, and each highest apical margin is higher by the apical margin of the wheel hub；The outer rim shape of multiple flabellum
At a maximum outside diameter, the outer diameter of the wheel hub and the ratio of the maximum outside diameter are greater than 0.4 and are less than or equal to 0.5.
12. the impeller of centrifugal fan as claimed in claim 11, which is characterized in that the wheel hub has an axially-extending portion, should
The outer diameter of wheel hub is the outer diameter of the axially-extending portion.
13. the impeller of centrifugal fan as claimed in claim 11, which is characterized in that in the axial direction of the shaft, the top of the wheel hub
The highest apical margin of edge and each flabellum has a maximum axial height at a distance of an axial spacing, each flabellum, and the axial spacing is not
Greater than the half of the maximum axial height.
14. the impeller of centrifugal fan as claimed in claim 11, which is characterized in that the impeller has an extension disk and a company
Ring is connect, which connects the wheel hub and the radially extension along the shaft, and the root edge of multiple flabellum connects the extension disk,
The connection ring connect multiple flabellum and with the extension disk separately.
15. the impeller of centrifugal fan as claimed in claim 14, which is characterized in that the shaft radially, multiple flabellum
Maximum outside diameter be less than or equal to the connection ring outer diameter.
16. the impeller of centrifugal fan as claimed in claim 15, which is characterized in that multiple flabellum and the connection ring are integrally formed
It is connected, the internal diameter of the connection ring is greater than or equal to the outer diameter of multiple flabellum root edge.
17. the impeller of centrifugal fan as claimed in claim 15, which is characterized in that the inner peripheral surface of the connection ring is connected to multiple
The outer rim of flabellum.
18. the impeller of centrifugal fan as claimed in claim 14, which is characterized in that the connection ring is equipped at least one counterweight tank.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107103656A TWI681127B (en) | 2018-02-01 | 2018-02-01 | Centrifugal fan and impeller thereof |
| TW107103656 | 2018-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110107514A true CN110107514A (en) | 2019-08-09 |
Family
ID=67483329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810160050.4A Pending CN110107514A (en) | 2018-02-01 | 2018-02-26 | Centrifugal fan and fan wheel thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110107514A (en) |
| TW (1) | TWI681127B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7351031B2 (en) * | 2004-11-01 | 2008-04-01 | Sunonwealth Electric Machine Industry Co., Ltd. | Centrifugal blower |
| CN101776089A (en) * | 2009-01-08 | 2010-07-14 | 台达电子工业股份有限公司 | Ventilation device and impeller thereof |
| CN202659562U (en) * | 2012-06-04 | 2013-01-09 | 广东美的制冷设备有限公司 | Eccentric wind wheel and air processing device with same |
| CN103850948A (en) * | 2013-09-13 | 2014-06-11 | 海信（山东）冰箱有限公司 | Centrifugal fan and refrigerator using fan |
| CN205190324U (en) * | 2014-11-18 | 2016-04-27 | 美蓓亚株式会社 | Impeller and centrifugal blower for centrifugal blower |
| CN106593946A (en) * | 2016-11-08 | 2017-04-26 | 青岛海尔股份有限公司 | Centrifugal fan and air-cooled refrigerator provided with same |
| CN206222805U (en) * | 2016-11-14 | 2017-06-06 | 青岛海尔股份有限公司 | For the beam and refrigerator of assembling in refrigerator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2234012A (en) * | 1989-07-14 | 1991-01-23 | Ibm | Dc motor driven centrifugal fan |
| JP2005246542A (en) * | 2004-03-04 | 2005-09-15 | Hitachi Koki Co Ltd | Power tool |
| TWI457505B (en) * | 2009-01-08 | 2014-10-21 | Delta Electronics Inc | Ventilator and impeller thereof |
| TWM371796U (en) * | 2009-08-11 | 2010-01-01 | Elitegroup Computer Sys Co Ltd | Vibration damping structure for fan |
| CN202007792U (en) * | 2011-04-01 | 2011-10-12 | 台达电子工业股份有限公司 | Impeller |
| CN104454635B (en) * | 2013-09-18 | 2017-03-08 | 佛山市建准电子有限公司 | Blower fan |
| DE102014208372A1 (en) * | 2014-04-11 | 2015-10-15 | Ebm-Papst Mulfingen Gmbh & Co. Kg | balancing bags |
| US20180023587A1 (en) * | 2016-07-19 | 2018-01-25 | Minebea Mitsumi Inc. | Centrifugal Fan |
-
2018
- 2018-02-01 TW TW107103656A patent/TWI681127B/en active
- 2018-02-26 CN CN201810160050.4A patent/CN110107514A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7351031B2 (en) * | 2004-11-01 | 2008-04-01 | Sunonwealth Electric Machine Industry Co., Ltd. | Centrifugal blower |
| CN101776089A (en) * | 2009-01-08 | 2010-07-14 | 台达电子工业股份有限公司 | Ventilation device and impeller thereof |
| CN202659562U (en) * | 2012-06-04 | 2013-01-09 | 广东美的制冷设备有限公司 | Eccentric wind wheel and air processing device with same |
| CN103850948A (en) * | 2013-09-13 | 2014-06-11 | 海信（山东）冰箱有限公司 | Centrifugal fan and refrigerator using fan |
| CN205190324U (en) * | 2014-11-18 | 2016-04-27 | 美蓓亚株式会社 | Impeller and centrifugal blower for centrifugal blower |
| CN106593946A (en) * | 2016-11-08 | 2017-04-26 | 青岛海尔股份有限公司 | Centrifugal fan and air-cooled refrigerator provided with same |
| CN206222805U (en) * | 2016-11-14 | 2017-06-06 | 青岛海尔股份有限公司 | For the beam and refrigerator of assembling in refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI681127B (en) | 2020-01-01 |
| TW201934879A (en) | 2019-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204851785U (en) | Electric blowing -in machine | |
| CN1784547B (en) | Multi-vane centrifugal blower | |
| JP5665802B2 (en) | Centrifugal fan | |
| CN104641121B (en) | Propeller type fan and possess the air conditioner of this propeller type fan | |
| CN101965461A (en) | Centrifugal fan and noise reduction method in centrifugal fan | |
| CN101451541B (en) | Centrifugal fan | |
| CN104196761A (en) | Double-air-inlet centrifugal fan | |
| US20150345511A1 (en) | Centrifugal fan | |
| WO2018032761A1 (en) | Centrifugal fan wheel, centrifugal fan and air conditioner using same | |
| JPH08508806A (en) | Radial fan wheel | |
| CN104454635A (en) | Blowing fan | |
| JP3677214B2 (en) | Axial fan | |
| CN110107514A (en) | Centrifugal fan and fan wheel thereof | |
| CN202360431U (en) | Fan capable of preventing vane from removing | |
| JP4519734B2 (en) | Rotating impeller and propeller fan | |
| WO2020082913A1 (en) | Centrifugal fan blade assembly, centrifugal fan, and air conditioner | |
| CN109185225B (en) | Fan blade and fan | |
| CN201080925Y (en) | Fan flow guiding structure | |
| JP3150477U (en) | Fan and its fan wheel | |
| JP5114845B2 (en) | Blower impeller | |
| JP2012036827A (en) | Sirocco fan | |
| CN211525180U (en) | Centrifugal fan and centrifugal fan blade unit thereof | |
| CN107781224B (en) | Axial flow fan | |
| US10125774B2 (en) | Centrifugal fan | |
| CN219012939U (en) | Centrifugal fan blade and courtyard machine |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190809 |
|
| RJ01 | Rejection of invention patent application after publication |