CN102913480A - Fan blade of wind suction and exhaust fan - Google Patents
Fan blade of wind suction and exhaust fan Download PDFInfo
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- CN102913480A CN102913480A CN2012104499537A CN201210449953A CN102913480A CN 102913480 A CN102913480 A CN 102913480A CN 2012104499537 A CN2012104499537 A CN 2012104499537A CN 201210449953 A CN201210449953 A CN 201210449953A CN 102913480 A CN102913480 A CN 102913480A
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- fan blade
- fan
- wind wheel
- centrifugal
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Abstract
A technical scheme is adopted by a fan blade to enlarge wind suction and exhaust volumes of a centrifugal fan as follows: the fan blade is different in shape at upper and lower parts and is formed through pressing a metal sheet, an upper mounting foot and a lower mounting foot are arranged at the two ends respectively, the large end of the fan blade forms an arc flowing shape through angle and radian deflection with the small end of the fan body, so that when the fan blade is mounted on a wind wheel body formed through the combination of an outer ring of a wind wheel main ring and a positioning ring, a wind wheel equipped with the fan blade forms a larger air flow in the middle of the wind wheel under the drive of an electric motor and introduces powerful air, the centrifugal fan equipped with the fan blade and mounted on a range hood has powerful smoke suction and exhaust effects, and the purpose of the invention is achieved.
Description
Technical field
The present invention relates to the suction impeller of blower, particularly, but also not exclusively say, the present invention relates to centrifugal fan, as be installed in centrifugal fan above the range hood.
Background technique
Centrifugal fan be installed at present above the range hood, pump drainage oil smoke critical component again, known various centrifugal fans have motor, spiral case, receded disk impeller to combine at present.
Receded disk impeller is comprised of main circle, some long strip blades and positioning ring, and main circle center hole is connected with motor shaft, and long strip blade one end is connected with main circle outer ring, and the other end is connected with positioning ring.
And the long strip blade has several angle to install, form a centrifugal impeller integral body and be installed in the spiral case inboard with motor, motor rotation drives centrifugation blade and presses the certain orientation rotation, oil smoke is inhaled in the middle of the impeller, the impeller of certain orientation High Rotation Speed produces centrifugal force, and under the effect of centrifugal force, the oil smoke that enters the impeller inner ring is thrown out of the impeller outer ring, exclude from the spiral case exhaust outlet, reach the purpose of certain pump drainage oil smoke.
The peace according to reason air quantity in opinion upper volute outlet port equals to be inhaled in the centrifugal impeller air quantity, but in fact the airflow pressure of entry port and spiral case exhaust outlet is not equal in the middle of the centrifugal impeller, the airflow pressure of reason exhaust outlet be big or small through the peculiar radial variation in spiral case inner ring and centrifugal impeller outer ring, make air pass through fan blade and gap, spiral case outlet port on the wind wheel compression, just make the spiral case outlet port that the Air blowing of certain pressure be arranged.
But owing to using at present the defective of fan blade not have through up and down big or small arc displacement above the centrifugal wind wheel, make the interior air of centrifugal impeller that the larger variation of flowability not occur, thereby make the scroll casing type centrifugal blower that is installed at present above the range hood, when exhaust air rate reaches or exceed industry standard, and suction oil smoke effect is unsatisfactory.
Summary of the invention
Technical problem to be solved by this invention is, overcome and use fan blade not have through up and down big or small arc displacement in the present scroll casing type centrifugal blower above the centrifugal impeller, make the poor technological deficiency of scroll casing type assembling smoking effect on range hood, a kind of increase centrifugal fan suction air quantity fan blade is provided.
In order to realize purpose of the present invention, a kind of technological scheme that centrifugal fan suction air quantity fan blade adopts that increases of the present invention: be included in and be pressed into the shape fan blade that varies in size up and down on the tinsel, two ends are respectively upper installation feet, lower installation foot, and the large end of fan blade is by angle and radian displacement, form arc fluid shape with small end, make fan blade of the present invention be installed in the wind wheel master and enclose wind wheel that outer ring and positioning ring be combined into when whole, the wind wheel that fan blade of the present invention is installed has larger Air Flow in the middle of the wind wheel under electric machine rotation drives, forming strong air introduces, thereby use and fan blade centrifugal fan of the present invention to be housed to be installed in strong smoking and smoke discharging effect are arranged above the smoke extractor, reach purpose of the present invention.
Making of the present invention and working principle are such: connect with sheet metal vertical compression on the die pressure machine and make fan blade shape of the present invention, yet be connected to form a wind wheel integral body with the main circle in outer ring, be connected to the particular spiral the inside by motor, electrical power rotates to drive installs fan blade wind wheel rotation of the present invention, there are larger Air Flow, the strong air of formation to introduce in the middle of making wind wheel, thereby use fan blade centrifugal fan of the present invention to be installed in strong smoking and smoke discharging effect arranged above the smoke extractor.
Description of drawings
Fig. 1 is embodiment of the invention structure shape view:
Fig. 2 is that embodiment of the invention fan blade is installed the rear wind wheel view that is shaped;
Fig. 1 is the view of impeller of blower 2 processing after compressing; Be included in and make the shape fan blade 2 that varies in size up and down on the tinsel, installation foot 3, lower installation foot 1 are gone up respectively in two ends, and the large end of fan blade is by angle and radian displacement, form arc fluid shape with small end.
With reference to Fig. 2 fan blade 2 of the present invention, installation foot 3, installation foot 1 are installed in the wind wheel master to enclose outer ring 4 whole with the wind wheel that positioning ring 5 is combined into.
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Claims (2)
- An impeller of blower (2) processing compressing after; Be included in and make the shape fan blade (2) that varies in size up and down on the tinsel, installation foot (3), lower installation foot (1) are gone up respectively in two ends, and the large end of fan blade is by angle and radian displacement, form arc fluid shape with small end.
- 2. according to claims 1 described wind fan blade (2), installation foot (3, installation foot (1) is installed in the wind wheel master to enclose outer ring (4) whole with the wind wheel that positioning ring (5) is combined into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104499537A CN102913480A (en) | 2012-11-12 | 2012-11-12 | Fan blade of wind suction and exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104499537A CN102913480A (en) | 2012-11-12 | 2012-11-12 | Fan blade of wind suction and exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102913480A true CN102913480A (en) | 2013-02-06 |
Family
ID=47611992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104499537A Pending CN102913480A (en) | 2012-11-12 | 2012-11-12 | Fan blade of wind suction and exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102913480A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11270495A (en) * | 1998-03-19 | 1999-10-05 | Sowa Denki Seisakusho:Kk | Impeller for centrifugal blower and centrifugal blower |
| JP2000240590A (en) * | 1999-02-23 | 2000-09-05 | Hitachi Ltd | Multiblade forward fan |
| CN2536818Y (en) * | 2002-03-16 | 2003-02-19 | 杨金星 | Centrifugal fan impeller blade |
| CN201037475Y (en) * | 2007-05-08 | 2008-03-19 | 金家宝工业有限公司 | Fan blade structure |
| CN201475039U (en) * | 2009-06-17 | 2010-05-19 | 依必安派特风机(上海)有限公司 | Centrifugal fan impeller |
| CN203051217U (en) * | 2012-11-12 | 2013-07-10 | 胡国贤 | Fan blade of suction and exhaust fan |
-
2012
- 2012-11-12 CN CN2012104499537A patent/CN102913480A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11270495A (en) * | 1998-03-19 | 1999-10-05 | Sowa Denki Seisakusho:Kk | Impeller for centrifugal blower and centrifugal blower |
| JP2000240590A (en) * | 1999-02-23 | 2000-09-05 | Hitachi Ltd | Multiblade forward fan |
| CN2536818Y (en) * | 2002-03-16 | 2003-02-19 | 杨金星 | Centrifugal fan impeller blade |
| CN201037475Y (en) * | 2007-05-08 | 2008-03-19 | 金家宝工业有限公司 | Fan blade structure |
| CN201475039U (en) * | 2009-06-17 | 2010-05-19 | 依必安派特风机(上海)有限公司 | Centrifugal fan impeller |
| CN203051217U (en) * | 2012-11-12 | 2013-07-10 | 胡国贤 | Fan blade of suction and exhaust fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |