CN103089699A - Low air resistance impeller for exhaust fan - Google Patents
Low air resistance impeller for exhaust fan Download PDFInfo
- Publication number
- CN103089699A CN103089699A CN 201110343855 CN201110343855A CN103089699A CN 103089699 A CN103089699 A CN 103089699A CN 201110343855 CN201110343855 CN 201110343855 CN 201110343855 A CN201110343855 A CN 201110343855A CN 103089699 A CN103089699 A CN 103089699A
- Authority
- CN
- China
- Prior art keywords
- impeller
- conducting element
- air
- periphery
- wheel cap
- 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
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a low air resistance impeller for an exhaust fan. The low air resistance impeller comprises a flow guide part, a wheel cover and a plurality of groups of blades, the flow guide part corresponds to an air supply outlet of a shell, an air inlet of the wheel cover corresponds to an air inlet of the shell, the blades are arranged between the flow guide part and the wheel cover, airflow inputted from the air inlet of the shell of the exhaust fan is guided to flow towards the air supply outlet of the shell of the exhaust fan through the periphery of the flow guide part, the peripheral diameter of the wheel cove of the impeller is larger than that of the flow guide part, and the airflow flows along the periphery of the flow guide part after flowing through the air inlet of the shell of the exhaust fan, the air inlet of the wheel cover and the blades, so that the air resistance between the airflow and the inner wall of the shell of the exhaust fan is reduced.
Description
Technical field
The present invention relates to a kind of blade wheel structure of air bells exhauster, refer to especially utilize blade wheel structure to make air-flow reduce windage and the noise of air bells exhauster running towards the exhaust outlet following current.
Background technique
common air bells exhauster 10 as shown in Figure 1, this air bells exhauster 10 has a housing 11 and is located at a motor 12 and an impeller 13 of this housing 11 inside, this impeller 13 has a wheel cap 131 and a wheel disc 132, be provided with a plurality of blades 133 that radiation is arranged that are between this wheel cap 131 and all sides of this wheel disc 132, this wheel cap 131 central authorities are provided with an opening 1311, this motor 12 has a live axle 121 and these impeller 13 wheel disc 132 windings, the bearing of trend that defines this live axle 121 is an axial X, this housing 11 offers a wind inlet 111 and an air blowing opening 112 in the place, two ends of this axial X, and the opening 1311 of these impeller 13 wheel caps 131 is towards this wind inlet 111, make that this impeller 13 is inner to be communicated with this housing 11 outsides,
This air bells exhauster 10 utilizes motor 12 drives impeller 13 fast rotational to produce centrifugal force, make impeller 13 blade 133 disturbance air and centrifugal throwing away between impeller 13 and housing 11, these impeller 13 central spaces form environment under low pressure because air reduces simultaneously, make outside air for these air bells exhauster 10 wind inlet 111 inputs and reach the air draft effect towards air blowing opening 112 outputs.
yet, common air bells exhauster 10 but has the large problem of fan resistance, see also shown in Figure 1, impeller 13 mat high speed rotating throw away input air and form between its all side and housing 11 in the process of centrifugal flow, centrifugal flow must first flow along blade 133 shapes, thrown away with housing 11 inwalls by impeller 13 with the path of the axial X of near vertical again and contact, coordinating at last the input air-flow to drive along housing 11 inwalls towards air blowing opening 112 flows, at this moment, because the wheel disc 132 of common air bells exhauster 10 has same diameter with wheel cap 131, cause centrifugal flow before changing flow direction, be with the housing 11 subvertical flow path of inwall, thereby cause the common air bells exhauster 10 large situations of running windage, not only directly affect the running efficiency to air bells exhauster 10, also indirectly cause simultaneously common air bells exhauster 10 wind to cut the problems such as noise is obvious, therefore the impeller 13 of common air bells exhauster 10 has its improved necessity,
For overcoming above-mentioned shortcoming, the invention provides a kind of low windage impeller of air bells exhauster.
Summary of the invention
main purpose of the present invention is to provide a kind of low windage impeller of air bells exhauster, it is to comprise that a conducting element is to air blowing opening setting that should housing, one wheel cap with its intake grill to wind inlet setting that should housing, and a plurality of blades that are mounted between this conducting element and this wheel cap, periphery guiding by this conducting element is flowed towards the air blowing opening of this air bells exhauster housing from the air-flow of the wind inlet input of this air bells exhauster housing, and the wheel cap periphery diameter of this impeller is greater than this conducting element periphery diameter, make this air bells exhauster housing wind inlet of this airflow passes, this wheel cap intake grill, flow along this conducting element periphery after this blade, to reach the purpose of the windage that reduces this air-flow and this air bells exhauster inner walls.
Another object of the present invention is to provide a kind of low windage impeller of air bells exhauster, it is to extend to an axis by the axle center that defines this live axle, this conducting element periphery is provided with an a point, this wheel cap periphery is provided with a b point, one baseline extends from parallel this conducting element periphery of this a point, this a point and this b point connect into an imaginary line, make this baseline, this imaginary line and this axis be positioned at same plane, this baseline and this imaginary line form an angle in this a point common factor, this angle angle is that 15 degree are to 80 degree, be preferably 45 to 60 degree, the best is 58 degree.
A kind of low windage impeller of air bells exhauster is mainly the enclosure interior that an impeller is located at an air bells exhauster, and this housing offers a wind inlet and an air blowing opening, and this enclosure interior is provided with a motor for driving this impeller, and wherein, this impeller comprises:
One conducting element, to air blowing opening setting that should housing and with a live axle winding of this motor, this conducting element has a periphery, flows towards the air blowing opening of this air bells exhauster housing for the air-flow of guiding from the wind inlet input of this air bells exhauster housing;
One wheel cap has a periphery and is formed with an intake grill, make this wheel cap with its intake grill to wind inlet setting that should housing, this wheel cap periphery diameter is greater than this conducting element periphery diameter; And
A plurality of blades are radiation and arrange and to be mounted between this conducting element and this wheel cap, make after this air bells exhauster housing wind inlet of this airflow passes, this wheel cap intake grill, this blade mobile along this conducting element periphery, to reduce the windage of this air-flow and this air bells exhauster inner walls.
A kind of low windage impeller of air bells exhauster, wherein: this conducting element central authorities be provided with an impeller hub for the live axle winding of this motor, define an a point and be located at this conducting element periphery, a baseline extends from parallel this conducting element periphery of this a point, and the axle center of this live axle extends to an axis; Another definition 1 b point is located at this wheel cap periphery, and this a point and this b point connect into an imaginary line, and this baseline, this imaginary line and this axis be positioned at same plane, and this baseline and this imaginary line are in this a point common factor and form an angle.
A kind of low windage impeller of air bells exhauster, wherein, this angle angle is that 15 degree are to 80 degree.
A kind of low windage impeller of air bells exhauster, wherein, this angle angle is that 45 degree are to 60 degree.
A kind of low windage impeller of air bells exhauster, wherein, this angle angle is 58 degree.
A kind of low windage impeller of air bells exhauster, wherein, this conducting element, this wheel cap and this blade winding place are provided with a plurality of fasten spots, this blade has a cephalolateral margin and is formed with a plurality of blocking recesses and this conducting element fasten spot positioning and assembling, and this blade has a posterior lateral margin and is formed with a plurality of blocking recesses and this wheel cap fasten spot positioning and assembling.
A kind of low windage impeller of air bells exhauster, wherein, these a plurality of blades are the curved arc sheet, respectively this blade has two lateral margins, and the one lateral margin is a cephalolateral margin and this conducting element winding, and another lateral margin is a posterior lateral margin and this wheel cap winding, and this blade has two ora terminalis, the one ora terminalis is an interior ora terminalis of contiguous this impeller central authorities, and another ora terminalis is the external end edge of contiguous this conducting element and this wheel cap periphery, and this blade external end edge is camber line and connects this conducting element periphery and this wheel cap periphery.
A kind of low windage impeller of air bells exhauster, wherein, this impeller hub fovea centralis is provided with the fixedly winding of a live axle of an axis hole and this motor.
By this, make air-flow be easy to flow towards this air bells exhauster air blowing opening, contact with this inner walls with the flow direction that approaches vertical this inner walls and significantly reduce air-flow, reach the purpose that reduces this air bells exhauster running windage, having simultaneously increases air bells exhauster fortune efficient and reduces the effect that wind is cut noise.
Description of drawings
The composite structure schematic diagram of the common air bells exhauster housing of Fig. 1 and impeller.
Fig. 2 air bells exhauster housing of the present invention and impeller combination structural representation.
The perspective view that Fig. 3 impeller of the present invention is watched from conducting element.
The perspective view that Fig. 4 impeller of the present invention is watched from wheel cap.
Fig. 5 impeller angle of the present invention approximately 55 the degree to 60 the degree structural representations.
Fig. 6 impeller angle of the present invention approximately 65 the degree to 70 the degree structural representations.
Fig. 7 impeller angle of the present invention is the structural representation of 45 degree approximately.
Description of reference numerals
Embodiment
Embodiments of the present invention hereby please coordinate description of drawings, and details are as follows:
At first, coordinate Fig. 3,4,5 explanations with Fig. 2, the preferred embodiment of the low windage impeller of a kind of air bells exhauster provided by the present invention, it is inner to be mainly that an impeller D is located at the housing B of an air bells exhauster A, this housing B offers a wind inlet B1 and an air blowing opening B2, this housing B inside is provided with a motor C for driving this impeller D, and this impeller D comprises a conducting element 20, a wheel cap 30 and a plurality of blade 40 of being located between this conducting element 20 and this wheel cap 30, wherein:
This conducting element 20, having a periphery 21 flows towards the air blowing opening B2 of this air bells exhauster A housing B for the air-flow of guiding from the wind inlet B1 of this air bells exhauster A housing B input, and this conducting element 20 central authorities are provided with an impeller hub 22, these impeller hub 22 fovea centraliss are provided with an axis hole 221 and one of this motor C fixedly winding of live axle C1, to make this motor C drive this impeller D rotation, these conducting element 20 end faces are provided with a plurality of fasten spots 23; As shown in Fig. 2,5, definition 1 a point is located at this conducting element 20 periphery 21, one baseline L1 and is extended from parallel these conducting element 20 peripheries 21 of this a point, and the axle center of this live axle C1 extends to an axis L3;
This wheel cap 30, have a periphery 31 and be formed with an intake grill 32, make this wheel cap 30 with 32 pairs of its intake grills should housing B wind inlet B1 arrange, these wheel cap 30 end faces are provided with a plurality of fasten spots 33, as shown in Fig. 2,5, these wheel cap 30 periphery 31 diameter d 2 are greater than these conducting element 20 periphery 21 diameter d 1, define a b point and be located at this wheel cap 30 peripheries 31, this a point and this b point connect into an imaginary line L2, and this baseline L1, this imaginary line L2 and this axis L3 are positioned at same plane, and this baseline L1 and this imaginary line L2 occur simultaneously in this a point and form 15 degree to one of 80 degree angle theta;
these a plurality of blades 40, as Fig. 3, being the radiation arrangement shown in 4 is located between this conducting element 20 and this wheel cap 30, respectively this blade 40 is be the curved arc sheet and have both side edges, wherein a lateral margin is a cephalolateral margin 41, this cephalolateral margin 41 is formed with a plurality of blocking recesses 411 and these conducting element 20 fasten spot 23 positioning and assemblings, another lateral margin is a posterior lateral margin 42, this posterior lateral margin 42 is formed with a plurality of blocking recesses 421 and these wheel cap 30 fasten spot 33 positioning and assemblings, and this blade 40 has two ora terminalis, the one ora terminalis is an interior ora terminalis 43 of this impeller of vicinity D central authorities, another ora terminalis is contiguous this conducting element 20 and these wheel cap 30 peripheries 21, 31 external end edge 44, and these blade 40 external end edges 44 are camber line and connect this conducting element 20 peripheries 21 and these wheel cap 30 peripheries 31,
By this, this air bells exhauster of this airflow passes A housing B wind inlet B1, these wheel cap 30 intake grills 32, this blade 40 are rear to flow along these conducting element 20 peripheries 21, to reduce the windage of this air-flow and this air bells exhauster A housing B inwall.
The low windage impeller of air bells exhauster of the present invention is by the angle theta between wheel cap 30 peripheries 31 and conducting element 20 peripheries 21, define the relativeness of these wheel cap 30 periphery 31 diameter d 2 and conducting element 20 periphery 21 diameter d 1, wherein, when spending greater than 80 due to this angle theta, these wheel cap 30 periphery 31 diameter d 2 are quite approaching with conducting element 20 periphery 21 diameter d 1, and are difficult to effectively reach the purpose that the present invention reduces windage;
in addition, this angle theta is less, wheel cap 30 diameter d 2 are larger with the gap of conducting element 20 diameter d 1, windage reduction amplitude is larger, yet, when this angle theta is spent less than 15, these conducting element 20 periphery 21 diameter d 1 are very big with the gap of these wheel cap 30 periphery 31 diameter d 2, form conducting element 20 areas much smaller than the impeller D form of wheel cap 30 areas, because impeller D sees through conducting element 20 stressed rotation with the live axle C1 winding of motor C, easily shake when driving whole impeller D High Rotation Speed with small size conducting element 20, the situations such as rotation has some setbacks, be that 15 degree are to 80 degree therefore define this angle theta angle,
Wherein, to have better angle theta angular range be that 45 degree are to 60 degree, again take angle theta angle 58 degree as best to impeller D of the present invention; As shown in Figure 5, show this impeller D have angle theta approximately 55 the degree to 60 the degree structural representations, for another shown in Figure 6, show this impeller D have angle theta approximately 65 the degree to 70 the degree structural representations, Fig. 7 show this impeller D have angle theta approximately 45 the degree structural representations.
The above is embodiment of the present invention main member and configuration explanation thereof, as for drive manner and the effect thereof of preferred embodiment of the present invention, does following explanation:
please coordinate Fig. 5 to illustrate with Fig. 2, when impeller D is that motor C drives and during High Rotation Speed, the air of input air bells exhauster A is that impeller D throws away and forms the air-flow that flows along centrifugal pathway, due to wheel cap 30 periphery 31 diameter d 2 greater than conducting element 20 periphery 21 diameter d 1, shorten the centrifugal flow of the contiguous conducting element 20 of part in the flow-path-length of impeller D inside, that is increase centrifugal flow and leave the path length that flows to housing B inwall after impeller D, by this, allow centrifugal flow be able to centrifugal when leaving impeller D, flow direction reduces and the friction of housing B thereby the drive of being inputted air-flow changes fast, reach and significantly reduce windage and wind is cut the problems such as noise, improve simultaneously the running usefulness of air bells exhauster A.
Claims (8)
1. the low windage impeller of an air bells exhauster, be mainly the enclosure interior that an impeller is located at an air bells exhauster, and this housing offers a wind inlet and an air blowing opening, and this enclosure interior is provided with a motor for driving this impeller, and it is characterized in that: this impeller comprises:
One conducting element, to air blowing opening setting that should housing and with a live axle winding of this motor, this conducting element has a periphery, flows towards the air blowing opening of this air bells exhauster housing for the air-flow of guiding from the wind inlet input of this air bells exhauster housing;
One wheel cap is have a periphery and be formed with an intake grill, make this wheel cap with its intake grill to wind inlet setting that should housing, this wheel cap periphery diameter is greater than this conducting element periphery diameter; And
A plurality of blades are radiation and arrange and to be mounted between this conducting element and this wheel cap, make after this air bells exhauster housing wind inlet of this airflow passes, this wheel cap intake grill, this blade mobile along this conducting element periphery, to reduce the windage of this air-flow and this air bells exhauster inner walls.
2. the low windage impeller of air bells exhauster as claimed in claim 1, it is characterized in that: this conducting element central authorities be provided with an impeller hub for the live axle winding of this motor, define an a point and be located at this conducting element periphery, one baseline extends from parallel this conducting element periphery of this a point, and the axle center of this live axle extends to an axis; Another definition 1 b point is located at this wheel cap periphery, and this a point and this b point connect into an imaginary line, and this baseline, this imaginary line and this axis be positioned at same plane, and this baseline and this imaginary line are in this a point common factor and form an angle.
3. the low windage impeller of air bells exhauster as claimed in claim 2 is characterized in that: this angle angle is that 15 degree are to 80 degree.
4. the low windage impeller of air bells exhauster as claimed in claim 2 is characterized in that: this angle angle is that 45 degree are to 60 degree.
5. the low windage impeller of air bells exhauster as claimed in claim 2 is characterized in that: this angle angle is 58 degree.
6. the low windage impeller of air bells exhauster as claimed in claim 1, it is characterized in that: this conducting element, this wheel cap and this blade winding place are provided with a plurality of fasten spots, this blade has a cephalolateral margin and is formed with a plurality of blocking recesses and this conducting element fasten spot positioning and assembling, and this blade has a posterior lateral margin and is formed with a plurality of blocking recesses and this wheel cap fasten spot positioning and assembling.
7. the low windage impeller of air bells exhauster as claimed in claim 1, it is characterized in that: these a plurality of blades are the curved arc sheet, respectively this blade has two lateral margins, the one lateral margin is a cephalolateral margin and this conducting element winding, another lateral margin is a posterior lateral margin and this wheel cap winding, and this blade has two ora terminalis, the one ora terminalis is an interior ora terminalis of contiguous this impeller central authorities, another ora terminalis is the external end edge of contiguous this conducting element and this wheel cap periphery, and this blade external end edge is camber line and connects this conducting element periphery and this wheel cap periphery.
8. the low windage impeller of air bells exhauster as claimed in claim 1, it is characterized in that: this impeller hub fovea centralis is provided with the fixedly winding of a live axle of an axis hole and this motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110343855 CN103089699A (en) | 2011-11-03 | 2011-11-03 | Low air resistance impeller for exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110343855 CN103089699A (en) | 2011-11-03 | 2011-11-03 | Low air resistance impeller for exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103089699A true CN103089699A (en) | 2013-05-08 |
Family
ID=48202682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110343855 Pending CN103089699A (en) | 2011-11-03 | 2011-11-03 | Low air resistance impeller for exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103089699A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177977A (en) * | 2020-11-12 | 2021-01-05 | 江苏优格曼航空科技有限公司 | Low-wind-resistance impeller for magnetic suspension fan and preparation method thereof |
-
2011
- 2011-11-03 CN CN 201110343855 patent/CN103089699A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177977A (en) * | 2020-11-12 | 2021-01-05 | 江苏优格曼航空科技有限公司 | Low-wind-resistance impeller for magnetic suspension fan and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202883470U (en) | Fan structure of noise-reduction type extractor hood | |
| US10052931B2 (en) | Outdoor cooling unit in vehicle air-conditioning apparatus | |
| CN103999337B (en) | Blower module | |
| US20080187439A1 (en) | Blower assembly with pre-swirler | |
| JP5749195B2 (en) | Counter-rotating blower | |
| US6955521B2 (en) | Flow-forced generator with turbo-charging deflection hood | |
| CN206503769U (en) | Centrifugal fan | |
| CN107514379A (en) | A kind of centrifugal blower of the double air-out of double air intakes | |
| JP3204521U (en) | fan | |
| JP6078945B2 (en) | Centrifugal blower | |
| CN208793271U (en) | Impeller, centrifugal blower and range hood for centrifugal blower | |
| CN107747565B (en) | Air duct component of cross flow wind wheel and tower fan | |
| US10458423B2 (en) | Impeller and fan including the impeller | |
| CN103089699A (en) | Low air resistance impeller for exhaust fan | |
| CN210568923U (en) | Novel air purifier | |
| CN202402343U (en) | Impeller structure of exhaust fan | |
| CN204878053U (en) | Centrifugal air wheel | |
| CN101994707A (en) | Airflow generation device | |
| CN102562658A (en) | Centrifugal fan impeller for air cooling refrigerator | |
| CN109026765A (en) | Impeller, centrifugal blower and range hood for centrifugal blower | |
| CN207848024U (en) | Seperated molding mixed flow turbine | |
| CN207673575U (en) | A kind of centrifugal blower and air cleaning facility | |
| CN207701411U (en) | Monoblock cast Middle pressure draught fan | |
| CN101957026A (en) | Window-type air conditioner with water coolant anti-spattering structure at outdoor side | |
| CN101204302A (en) | Motor impeller structure of dust collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130508 |