CN208763981U - Impeller, blower and electric appliance - Google Patents
Impeller, blower and electric appliance Download PDFInfo
- Publication number
- CN208763981U CN208763981U CN201821622166.7U CN201821622166U CN208763981U CN 208763981 U CN208763981 U CN 208763981U CN 201821622166 U CN201821622166 U CN 201821622166U CN 208763981 U CN208763981 U CN 208763981U
- Authority
- CN
- China
- Prior art keywords
- face
- leading edge
- wheel hub
- impeller
- blade
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of impeller, blower and electric appliance, impeller includes generally conical shape wheel hub and the circumferentially spaced multiple blades being arranged on the outer peripheral surface of wheel hub, blade includes leading edge face, working face and back pressure face, working face and back pressure face are located at two sides of the leading edge face in wheel hub circumferential direction, the costa extended along its length is formed on leading edge face, the two sides of costa pass through respectively to be substantially smoothly connected in the transition face of outer convex with working face and back pressure face.In this programme, blade inlet edge forms costa on face, costa is in the front end in leading edge face, therefore when wheel rotation, and air-flow is contacted with the moment of blade contact for line, what design reduced blade inlet edge in this way hits wind face, so as to reduce gas flow loss, while costa two sides, by being substantially in that the transition face of outer convex is smoothly connected with working face and back pressure face, transition face play the guiding role to air-flow, gas flow loss can be further decreased, to promote impeller working performance.
Description
Technical field
The utility model relates to blower and its applied technical fields, more specifically, are related to a kind of impeller, one kind has upper
State the blower and a kind of electric appliance with above-mentioned impeller of impeller.
Background technique
The structure of dust collector of the prior art makes to form negative pressure in the shell of sealing by the impeller rotation of blower, thus will
Dust sucks in dust collect plant to reach clean effect.Core component of the impeller as blower, performance will directly affect whole
The efficiency of a blower fan system, and impeller leading edge shape is affected to gas flow loss, therefore seems to the design of impeller leading edge
It is most important.
Utility model content
The utility model aims to solve the problem that at least one the technical problems existing in the prior art.
For this purpose, first purpose of the utility model is, a kind of impeller that can reduce gas flow loss is provided.
Second purpose of the utility model is, provides a kind of blower with above-mentioned impeller.
The third purpose of the utility model is, provides a kind of electric appliance with above-mentioned impeller.
To achieve the above object, the embodiment of the utility model first aspect provides a kind of impeller, including substantially in cone
Multiple blades on the wheel hub of shape and the circumferentially spaced outer peripheral surface that the wheel hub is arranged in, the blade include leading edge face, work
Make face and back pressure face, the working face and back pressure face are located at two sides of the leading edge face in the wheel hub circumferential direction, described
The costa extended along its length is formed on leading edge face, the two sides of the costa pass through substantially respectively in outer convex
Transition face is smoothly connected with the working face and the back pressure face.
In the present solution, forming costa on blade inlet edge face, costa is in the front end in leading edge face, therefore wheel rotation
When, air-flow is contacted with the moment of blade contact for line, and what design reduced blade inlet edge in this way hits wind face, so as to reduce gas
Flow losses, while costa two sides are smoothly connected by the transition face substantially in outer convex with working face and back pressure face,
Transition face play the guiding role to air-flow, can further decrease gas flow loss, to promote impeller working performance.
In the above-mentioned technical solutions, optionally, the transition face is the arcwall face outwardly protruded；Or the transition bread
The multistage arcwall face or inclined-plane being connected are included, making the transition face substantially is in the arcwall face outwardly protruded.
There is provided herein two kinds of transition face design schemes, in the first scheme, transition face is arcwall face, and two arcwall faces are preceding
Intersect at edge line, such design transition face is relatively simple for structure, and it is lower that impeller produces difficulty of processing.In second in scheme, two mistakes
The face of crossing respectively includes the multistage arcwall face or inclined-plane being connected, and two transition faces intersect at costa.
In any of the above-described technical solution, optionally, the inner end in the leading edge face connects with the wheel hub, the leading edge face
Outer end extend along straight line to the direction far from the wheel hub, and the costa is along linear extension.
In the present solution, the leading edge of blade is along linear extension, and costa is linearly, when wheel rotation, air-flow first with it is straight
Linear costa contact, can substantially reduce the gas flow loss at impeller eye end in this way, to promote the workability of impeller
Energy.
In any of the above-described technical solution, it is preferable that the angle α of straight line where the axis of the wheel hub and the costa
Meet: 55 °≤α≤70 °.
Costa and the angle of hub axis determine the contact angle of blade inlet edge and air-flow, therefore costa and wheel hub
The corner dimension of axis is an important factor for influencing impeller eye end gas flow loss, when the angle of costa and hub axis
When α is in the range of 55 °~70 °, impeller eye end gas flow loss is smaller, the favorable working performance of impeller.
In any of the above-described technical solution, it is preferable that the length L of the costa meets: 4mm≤L≤8mm.
The length of costa will affect wheel arrival end gas flow loss, the range of the length L of costa in 4mm~8mm
When interior, impeller eye end gas flow loss is smaller, the favorable working performance of impeller.
In any of the above-described technical solution, optionally, 5 to 15 are circumferentially arranged at equal intervals on the outer peripheral surface of the wheel hub
A blade.
In any of the above-described technical solution, optionally, blade further includes rear surface, and the rear surface is remote with the working face
One end, back pressure face one end and the wheel hub far from the leading edge face from the leading edge face connect, and the blade is plate
Twisted blade, turn-knob tilts the blade inlet edge section and trailing edge section of the blade round about respectively in a circumferential direction.
By leading edge to plate blade and rear turn-knob round about respectively, impeller can effectively reduce blade into
The fluid loss at mouth end and outlet end expands working face of impeller in the case where small flow, that is, increases efficient working range,
Greatly promote the working performance of impeller.
In any of the above-described technical solution, optionally, multiple back blades, each back blades point are additionally provided on the wheel hub
Not between adjacent two blade, and the distance at the leading edge face of the back blades to the wheel hub tip is greater than the blade
Leading edge face to the wheel hub tip distance.
The embodiment of the utility model second aspect provides a kind of blower, including as the utility model first aspect is any
The impeller that embodiment provides.
There is the blower that the utility model second aspect embodiment provides the utility model first aspect any embodiment to mention
The impeller of confession, therefore the blower has whole beneficial effects of the impeller of any of the above-described embodiment offer, details are not described herein.
The embodiment of the utility model third aspect provides a kind of electric appliance, including as the utility model first aspect is any
The impeller that embodiment provides.
There is the electric appliance that the utility model third aspect embodiment provides the utility model first aspect any embodiment to mention
The impeller of confession, therefore the electric appliance has whole beneficial effects of the impeller of any of the above-described embodiment offer, details are not described herein.
Specifically he, electric appliance provided by the utility model includes dust catcher, kitchen ventilator, hair dryer etc..
The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this
The practice of type is recognized.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram for the impeller that one embodiment of the utility model provides；
Fig. 2 is the schematic cross-sectional view of impeller shown in Fig. 1；
Fig. 3 is the structural schematic diagram at the leading edge position of impeller shown in Fig. 1；
Fig. 4 is the structural schematic diagram for the impeller that another embodiment of the utility model provides；
Fig. 5 is the structural schematic diagram of another angle of impeller shown in Fig. 4.
Wherein, the corresponding relationship between appended drawing reference and component names of the Fig. 1 into Fig. 5 are as follows:
1 wheel hub, 2 blades, 21 leading edge faces, 211 costas, 212 transition faces, 22 working faces, 23 back pressure faces, 24 rear surfaces, 3
Primary blades, the leading edge face of 31 primary blades, the working face of 32 primary blades, the back pressure face of 33 primary blades, 4 back blades, 41 back blades
Leading edge face, the working face of 42 back blades, the back pressure face of 43 back blades.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical
It is novel to be implemented using other than the one described here mode, therefore, the protection scope of the utility model not by
The limitation of following public specific embodiment.
The embodiment of the utility model first aspect optimizes impeller blade leading edge shape, and blade inlet edge is formed on face
Costa, and it is substantially in that the transition face of outer convex and the working face of blade and back pressure face are flat that the two sides of costa pass through respectively
Slip, in this way design can reduce the gas flow loss at impeller eye end, to promote the working performance of impeller.
Embodiment one:
As shown in Figure 1 to Figure 3, impeller includes generally conical shape wheel hub 1 and the circumferentially spaced periphery that wheel hub 1 is arranged in
Multiple blades 2 on face, blade 2 include leading edge face 21, working face 22, back pressure face 23 and rear surface 24, working face 22 and back pressure
Face 23 is located at two sides of the leading edge face 21 in 1 circumferential direction of wheel hub, and working face 22 is towards direction of rotation, and back pressure face 23 is backwards to rotation
Direction, rear surface 24 and working face 22 one end, back pressure face 23 far from leading edge face 21 one end and wheel hub 1 far from leading edge face 21
Connect, form the costa 211 extended along its length on leading edge face 21, the two sides of costa 211 pass through respectively is substantially in
The transition face 212 of outer convex is smoothly connected with working face 22 and back pressure face 23.
In the present solution, forming costa 211 on 2 leading edge face 21 of blade, costa 211 is in the front end in leading edge face 21,
Therefore when wheel rotation, the moment that air-flow is contacted with blade 2 contacts for line, designs reduce that blade 2 is up-front to hit wind face in this way,
So as to reduce gas flow loss, while 211 two sides of costa pass through substantially in the transition face 212 and working face of outer convex
22 and back pressure face 23 be smoothly connected, transition face 212 play the guiding role to air-flow, gas flow loss can be further decreased, from
And promote impeller working performance.
Specifically, transition face 212 is the arcwall face outwardly protruded；Or transition face 212 includes the multistage arc being connected
Face or inclined-plane make transition face 212 substantially in the arcwall face outwardly protruded.
There is provided herein two kinds of 212 design schemes of transition face, in the first scheme, transition face 212 is arcwall face, two arcs
Face is intersected at costa 211, and such design transition face 212 is relatively simple for structure, and it is lower that impeller produces difficulty of processing.In second
In scheme, two transition faces 212 respectively include the multistage arcwall face or inclined-plane being connected, two transition faces 212 phase at costa 211
It hands over.
In the above-described embodiments, the inner end in leading edge face 21 connects with wheel hub 1, and the outer end in leading edge face 21 is along straight line to far from wheel
The direction of hub 1 extends, and costa 211 is along linear extension.
In the present solution, the leading edge of blade 2 is along linear extension, and costa 211 is linearly, and when wheel rotation, air-flow is first
It is contacted with linear costa 211, can substantially reduce the gas flow loss at impeller eye end in this way, to promote impeller
Working performance.
Preferably, as shown in Fig. 2, the angle α of the axis of wheel hub 1 and 211 place straight line of costa meets: 55 °≤α≤
70°。
The angle of costa 211 and 1 axis of wheel hub determines the contact angle of blade 2 leading edge and air-flow, therefore costa
211 with the corner dimension of 1 axis of wheel hub are an important factor for influencing impeller eye end gas flow loss, when costa 211 with
When the angle α of 1 axis of wheel hub is in the range of 55 °~70 °, impeller eye end gas flow loss is smaller, the workability of impeller
It can be good.
Preferably, as shown in Figure 1, the length L of costa 211 meets: 4mm≤L≤8mm.
The length of costa 211 will affect wheel arrival end gas flow loss, and the length L of costa 211 is in 4mm~8mm
In the range of when, impeller eye end gas flow loss is smaller, the favorable working performance of impeller.
In the above-described embodiments, optionally, 5 to 15 blades 2 are circumferentially set at equal intervals on the outer peripheral surface of wheel hub 1.
In the above embodiment, it is preferable that blade 2 is plate twisted blade 2, after the blade inlet edge section and blade of blade 2
Turn-knob tilts rim segment round about respectively in a circumferential direction.
Wherein preferably, the blade inlet edge section of blade 2 is turned round towards 22 sidespin of working face and is tilted, the trailing edge section of blade 2
It turns round and tilts towards 23 sidespin of back pressure face.It should be noted that blade inlet edge section is also not necessarily limited to reverse to 22 side of working face, after blade
Rim segment is also not necessarily limited to 23 side of pressure surface torsion of supporting or opposing, and for same impeller, can also be in reverse to the direction of rotation rotation of diagram, but efficiency
Relative mistake.
In the present solution, after the leading edge segments of blade 2 are reversed to 22 side of working face, so that 23 side of back pressure face of 2 leading edge segments of blade
Be formed as convex and 22 side of working face is formed as concave panel, the rear rim segment of blade 2 supports or opposes after the torsion of 23 side of pressure surface, so that blade
23 side of back pressure face of rim segment is formed as concave panel after 2 and 22 side of working face is formed as convex, is conducive to fitting fluid in this way and draws
Stream, by leading edge to plate blade 2 and rear, turn-knob, impeller can effectively reduce the import of blade 2 round about respectively
The fluid loss at end and outlet end expands working face 22 of impeller in the case where small flow, that is, increases efficient working range,
Greatly promote the working performance of impeller.
Embodiment two:
As shown in Figure 4 and Figure 5, impeller includes generally conical shape wheel hub 1, multiple primary blades 3 and multiple back blades 4, master
Respectively on the circumferentially spaced outer peripheral surface that wheel hub 1 is arranged in, each back blades 4 is located at adjacent two main lobe for blade 3 and back blades 4
Between piece 3, and the distance at the leading edge face 41 of back blades 4 to 1 tip of wheel hub is greater than the leading edge face 31 to 1 tip of wheel hub of primary blades
Distance forms the costa extended along its length, the two sides difference of 3 costa of primary blades on the leading edge face 31 of primary blades 3
It is smoothly connected by the transition face for being substantially in outer convex with the working face 32 of primary blades 3 and back pressure face 33.It is main in the program
Blade in the design and implementation example one of blade 3 is identical, and details are not described herein, this scheme is equivalent to provided by the embodiment one
On the basis of impeller, increase back blades between adjacent blades.
In the above-described embodiments, the leading edge face 41 of back blades 4 is greater than the leading edge face 31 of primary blades to the distance at 1 tip of wheel hub
To the distance at 1 tip of wheel hub, design is not so that back blades 4 will increase impeller eye end gas flow loss in this way.
Preferably, the costa extended along its length, 4 costa of back blades are formed on the leading edge face 41 of back blades 4
Two sides pass through substantially be smoothly connected in the transition face of outer convex with the working face 42 of back blades 4 and back pressure face 43 respectively.
Design can reduce air-flow and gas flow loss when 4 edge contact of back blades in this way.Back blades 4 is plate twisted blade, secondary
Turn-knob tilts the blade inlet edge section and trailing edge section of blade 4 round about respectively in a circumferential direction.By to back blades 4
Leading edge and rear turn-knob can reduce fluid loss when air-flow flows through back blades 4 round about respectively, and increase back blades 4
Efficient working range, to further promote the working performance of impeller.
In the above-described embodiments, optionally, primary blades 3 and the total amount of back blades 4 are in 5 to 15 ranges.
The embodiment of the utility model second aspect provides a kind of blower, including as the utility model first aspect is any
The impeller that embodiment provides.
There is the blower that the utility model second aspect embodiment provides the utility model second aspect any embodiment to mention
The impeller of confession, therefore the blower has whole beneficial effects of the impeller of any of the above-described embodiment offer, details are not described herein.
The embodiment of the utility model third aspect provides a kind of electric appliance, including as the utility model first aspect is any
The impeller that embodiment provides.
There is the electric appliance that the utility model third aspect embodiment provides the utility model first aspect any embodiment to mention
The impeller of confession, therefore the electric appliance has whole beneficial effects of the impeller of any of the above-described embodiment offer, details are not described herein.
Specifically he, electric appliance provided by the utility model includes dust catcher, kitchen ventilator, hair dryer etc..
The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this
The practice of type is recognized.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model
In a embodiment or example.In the description, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.And description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.Term " connection ", " installation ", " fixation " etc. shall be understood in a broad sense, for example, " connection " can be fixation
Connection, may be a detachable connection, or be integrally connected；It can be directly connected, the indirect phase of intermediary can also be passed through
Even.For the ordinary skill in the art, it can understand above-mentioned term in the present invention as the case may be
Concrete meaning.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of impeller, including multiple on generally conical shape wheel hub and the circumferentially spaced outer peripheral surface that the wheel hub is arranged in
Blade, the blade include leading edge face, working face and back pressure face, and the working face and back pressure face are located at the leading edge face and exist
Two sides in the wheel hub circumferential direction, which is characterized in that
The costa extended along its length is formed on the leading edge face, the two sides of the costa pass through substantially respectively in outer
The transition face of convex is smoothly connected with the working face and the back pressure face.
2. impeller according to claim 1, which is characterized in that
The transition face is the arcwall face outwardly protruded；Or
The transition face includes the multistage arcwall face or inclined-plane being connected, and making the transition face substantially is in the arc outwardly protruded
Face.
3. impeller according to claim 1, which is characterized in that
The inner end in the leading edge face connects with the wheel hub, and the outer end in the leading edge face is along straight line to the direction far from the wheel hub
Extend, and the costa is along linear extension.
4. impeller according to claim 3, which is characterized in that
The angle α of straight line meets where the axis of the wheel hub and the costa: 55 °≤α≤70 °.
5. impeller according to claim 3, which is characterized in that
The length L of the costa meets: 4mm≤L≤8mm.
6. impeller according to claim 1, which is characterized in that
5 to 15 blades are circumferentially set at equal intervals on the outer peripheral surface of the wheel hub.
7. impeller according to claim 1, which is characterized in that
Blade further includes rear surface, and one end far from the leading edge face of the rear surface and the working face, back pressure face are far from institute
The one end and the wheel hub for stating leading edge face connect, the blade be plate twisted blade, the blade inlet edge section of the blade and
Turn-knob tilts trailing edge section round about respectively in a circumferential direction.
8. impeller according to any one of claim 1 to 7, which is characterized in that
Multiple back blades are additionally provided on the wheel hub, each back blades is located between the two neighboring blade, and institute
The distance for stating leading edge face to the wheel hub tip of back blades is greater than the leading edge face of the blade to the distance at the wheel hub tip.
9. a kind of blower, which is characterized in that including with impeller such as described in any item of the claim 1 to 8.
10. a kind of electric appliance, which is characterized in that including with impeller such as described in any item of the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622166.7U CN208763981U (en) | 2018-09-30 | 2018-09-30 | Impeller, blower and electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622166.7U CN208763981U (en) | 2018-09-30 | 2018-09-30 | Impeller, blower and electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208763981U true CN208763981U (en) | 2019-04-19 |
Family
ID=66137324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821622166.7U Active CN208763981U (en) | 2018-09-30 | 2018-09-30 | Impeller, blower and electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208763981U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439827A (en) * | 2019-09-19 | 2019-11-12 | 广东智搏动力科技有限公司 | A kind of vacuum pump that more vacuum degrees can be achieved |
| CN110439852A (en) * | 2019-09-19 | 2019-11-12 | 广东智搏动力科技有限公司 | A kind of composite fan impeller |
| CN110966250A (en) * | 2018-09-30 | 2020-04-07 | 广东威灵电机制造有限公司 | Impeller, fan and electrical apparatus |
-
2018
- 2018-09-30 CN CN201821622166.7U patent/CN208763981U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966250A (en) * | 2018-09-30 | 2020-04-07 | 广东威灵电机制造有限公司 | Impeller, fan and electrical apparatus |
| CN110439827A (en) * | 2019-09-19 | 2019-11-12 | 广东智搏动力科技有限公司 | A kind of vacuum pump that more vacuum degrees can be achieved |
| CN110439852A (en) * | 2019-09-19 | 2019-11-12 | 广东智搏动力科技有限公司 | A kind of composite fan impeller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208763981U (en) | Impeller, blower and electric appliance | |
| CN113309736B (en) | Blade, impeller, centrifugal fan, range hood and blade design method | |
| CN105275875A (en) | Centrifugal fan blade and centrifugal fan | |
| CN207892888U (en) | A kind of dust catcher noise reduction movable vane wheel and dust catcher | |
| CN206246413U (en) | A kind of forward multiple wing centrifugal fan | |
| CN105508303A (en) | Fan grid and fan with same | |
| CN211692946U (en) | Blowing and sucking machine with good blowing effect | |
| CN103185029A (en) | Centrifugal fan vane | |
| CN205173054U (en) | Centrifugal fan blade and centrifugal fan | |
| CN207935150U (en) | Impeller, fan and range hood | |
| CN201763675U (en) | Coil pipe air blower impeller | |
| CN202833301U (en) | Axial fan and air conditioner outside machine | |
| CN202690524U (en) | Cross flow wind wheel and air conditioner comprising same | |
| CN215293004U (en) | Blade, impeller, centrifugal fan and range hood | |
| CN209025886U (en) | A kind of super-silent impeller assembly for fan | |
| CN203175972U (en) | Vane wheel used on air conditioner | |
| CN103185031B (en) | A kind of centrifugation blade | |
| CN207687022U (en) | Air intake device and kitchen ventilator | |
| CN203297148U (en) | Through-flow fan for air conditioner capable of effectively improving fan performance | |
| CN203175979U (en) | Rear-tilting type centrifugal fan blade | |
| CN208059154U (en) | A kind of air conditioning exhausting grid and air-conditioner outdoor unit | |
| CN205401248U (en) | Tooth -like transmission centrifugal compressor diffuser | |
| CN206668619U (en) | A kind of blower of cleaner determines impeller | |
| CN216554519U (en) | Centrifugal fan impeller structure and centrifugal fan | |
| CN206409427U (en) | Business's kitchen air blower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |