CN2178800Y - Oblique-shape centrifugal fan cabable for reducing noise - Google Patents
Oblique-shape centrifugal fan cabable for reducing noise Download PDFInfo
- Publication number
- CN2178800Y CN2178800Y CN 93243856 CN93243856U CN2178800Y CN 2178800 Y CN2178800 Y CN 2178800Y CN 93243856 CN93243856 CN 93243856 CN 93243856 U CN93243856 U CN 93243856U CN 2178800 Y CN2178800 Y CN 2178800Y
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- CN
- China
- Prior art keywords
- flabellum
- centrifugal fan
- retaining ring
- oblique
- mode
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an oblique shape centrifugal fan capable for reducing noise. Primarily, as many fixing rings are used for positioning many blades and the oblique direction of each blade is oblique, odd blades and even blades can be on the same oblique line, or are cross. Thus, when the centrifugal fan rotates, the wind resistant friction of the wind cutting lined of the blades (or wind cutting ports) and air can be reduced, and the utility model has obvious noise reduction effect.
Description
The utility model relates to a kind of oblique shape centrifugal fan that reduces noise.Centrifugal fan design of the present utility model has in the time of can reducing flabellum wind cutting line (or claiming wind cutting mouth) rotation and the windage stridulation that produces between air, reduces the noise why not centrifugal fan produced in to reach, and is the design of a practicability.
With existing centrifugal fan, mainly be to apply in air gate or the similar air-conditioning equipment, can in the action of rotation, air outwards be blown out, because the required length specification of various air-conditioning equipments differs, simultaneously under the actual state restriction when centrifugal fan production and use, make that the designed centrifugal fan of each manufacturer is combined by a plurality of flabellums, can be convenient to the plastics injection on the one hand and make, then can need and convenient the adjustment on the other hand according to the length of air-conditioning equipment.Yet, with general existing centrifugal fan flabellum, it all is to be fixed between two retaining rings with many rectangular arcuation flabellums, and make each rectangular arcuation flabellum between two retaining rings, surround annular arrangement, this kind flabellum is when retaining ring rotates, then make flabellum stir air because of producing centrifugal force, air produce to be flowed and blow out downwards via the bottom of air gate, yet, this kind flabellum the time is to cut into each blade wind cutting line (or claiming wind cutting mouth) parallel type that air produces windage because of flabellum in rotation but, so produce the bigger people's noise of disturbing, this existing too big problem of its noise of centrifugal fan can't be overcome by relevant dealer, therefore always, the practicability of above-mentioned existing centrifugal fan is not good, and the necessity that is improved is arranged.
Main purpose of the present utility model is: a kind of oblique shape centrifugal fan that reduces noise is provided, by a plurality of retaining rings the multi-disc flabellum is located, and the true dip direction that makes each flabellum is oblique design, flabellum in flabellum in the odd number joint and the even numbers joint can be on same line of dip, or in mode arranged in a crossed manner, at centrifugal fan when rotating, can reduce and air between windage and can reduce noise, be rated as progressive, a practical novel designs.
The utility model provides a kind of oblique shape centrifugal fan that reduces noise.
For realizing this purpose, oblique shape centrifugal fan of the present utility model is formed with a plurality of retaining rings and multi-disc flabellum etc.This retaining ring is a circular lamellar body, and the peripheral region in this retaining ring forms the locating slot that a plurality of intervals are provided with, be provided with multi-disc in the side of the locating slot of retaining ring with ring-type and be curved arc shape flabellum, and be provided with the locating slot that cooperatively interacts with the flabellum end with intervening portion at the opposite side of retaining ring, and flabellum is the mode that is tilted to the upper right by the left bottom, and make the interior flabellum of odd number joint and even numbers joint present interlaced state, and the state of the mode of each sheet flabellum for tilting respectively forms a rotating shaft in the leftmost side and outside the central authorities of rightmost side retaining ring in addition.
The aforesaid oblique shape centrifugal fan that reduces noise can be all oblique arrangement on same straight line of every joint between the flabellum of each retaining ring central authorities, can be the mode that is tilted towards the upper right by the left bottom.
The aforesaid oblique shape centrifugal fan that reduces noise, the true dip direction that is each positioned at the flabellum on the same straight line can be the mode that is tilted towards the lower right by the upper left side.
The utility model have at least as after advantage: can obviously reduce the noise that centrifugal fan is produced when rotating: the utility model is that a plurality of retaining rings 10 of mat are with multi-disc flabellum 12 fixing and location, and the true dip direction that makes each flabellum 12 is the design of tilted direction, flabellum 12 in flabellum 12 in the odd number joint saves with even numbers can be on same line of dip, or in mode arranged in a crossed manner.So when centrifugal fan rotates, can reduce the windage that is produced between flabellum 12 and air, and noise of being produced when rotating of the flabellum 12 that can obviously reduce centrifugal fan.The utility model can the time have the bigger shortcoming of noise and overcomes fully having the centrifugal fan running now.
Further specify structure characteristic of the present utility model and purpose below in conjunction with accompanying drawing.
Brief Description Of Drawings:
Fig. 1 is a sectional perspective External view of the present utility model.
Fig. 2 is a sectional perspective exploded view of the present utility model.
Figure be 3 for the flabellum of model utility be alternating expression and enforcement illustration for tilting towards the upper right by the left bottom.
Fig. 4 is alternating expression and the enforcement illustration for being tilted towards the lower right by the upper left side for flabellum of the present utility model.
Fig. 5 is tilted towards the upper right by the left bottom for flabellum of the present utility model, and the enforcement illustration when being positioned on the same line of dip.
Fig. 6 is tilted towards the lower right by the upper left side for flabellum of the present utility model, and the enforcement illustration on when being positioned at same line of dip.
The utility model is a kind of oblique shape centrifugal fan (as shown in Figure 1 and Figure 2) that reduces noise, can find out overall structure of the present utility model among this figure.The utility model is formed with a plurality of retaining rings 10 and multi-disc flabellum 12.
This retaining ring 10 is a circular lamellar body, and the peripheral region in this retaining ring 10 forms the locating slot 11 that a plurality of intervals are provided with, in addition be provided with multi-disc with ring-type and be curved arc shape flabellum 12 in the side of retaining ring 10 locating slots 11, and be provided with the locating slot 13 that cooperatively interacts with flabellum 12 ends at the opposite side of flabellum 12 with intervening portion, and each flabellum 12 is the design that is tilted to the upper right by the left bottom.
When multi-disc flabellum 12 of the present utility model in when combination, be that end with flabellum 12 places in the locating slot 13, impose ultrasonic wave fusion program again,, centrifugal fan of the present utility model can be combined into a kind of knockdown mode as shown in Figure 3 so that flabellum 12 combines really with locating slot 13.So the centrifugal fan after the combination makes the flabellum 12 in odd number joint and the even numbers joint present interlaced state, and the mode of each sheet flabellum 12, for being tilted to the upper right by the left bottom.Respectively form a rotating shaft 20,21 in the leftmost side and outside the central authorities of rightmost side retaining ring 10 in addition, this rotating shaft 20,21 can be driven by power, and rotating shaft 20,21 and each retaining ring 10 and flabellum 12 are rotated.
Again as shown in Figure 4, it is an alternating expression flabellum 12 of the present utility model, and its arrangement mode can be for being tilted towards the lower right by the upper left side, and convex with a rotating shaft 20,21 outside each level of the outside of the leftmost side and rightmost side retaining ring 10 central authorities.
Again as shown in Figure 5, the flabellum 12 between each retaining ring 10 central authorities can be all inclined design on same straight line of every joint.This kind inclined design can be the mode that is tilted towards the upper right by the left bottom, or by the mode (as Fig. 6) of upper left side towards the lower right inclination.In addition in the leftmost side and the outside of rightmost side retaining ring 10 central authorities each outwards protrude out a rotating shaft 20,21 with level.
The utility model can be installed on the air gate for use when using (state among Fig. 3 to Fig. 6), when aforementioned rotating shaft 20,21 by after with motivational drives such as motors, each retaining ring 10 and flabellum 12 are also rotated.Because of centrifugal fan is to be positioned at a confined space to rotate, so when each flabellum 12 produces centrifugal force, but disturbance air and blowing out downwards via the bottom of air gate.And because of the true dip direction of each flabellum 12 is the design of tilted direction, the flabellum 12 in the odd number joint can be on same line of dip with flabellum 12 in the even numbers joint, or mode arranged in a crossed manner.So when between each flabellum 12 and air because of centrifugal force produces when friction, because of the design of this inclination flabellum 12, can effectively reduce the windage that is produced between each flabellum 12 and air, can obviously reduce the noise that the flabellum 12 of centrifugal fan is produced when rotating.
Claims (3)
1, a kind of oblique shape centrifugal fan that reduces noise is formed with a plurality of retaining rings and multi-disc flabellum, it is characterized in that:
This retaining ring is a circular lamellar body, and the peripheral region in this retaining ring forms the locating slot that a plurality of intervals are provided with, be provided with multi-disc in the side of the locating slot of retaining ring with ring-type and be curved arc shape flabellum, and be provided with the locating slot that cooperatively interacts with the flabellum end with intervening portion at the opposite side of retaining ring, and flabellum is the mode that is tilted to the upper right by the left bottom, and make the interior flabellum of odd number joint and even numbers joint present interlaced aspect, and the mode of each sheet flabellum respectively forms a rotating shaft in the leftmost side and outside the central authorities of rightmost side retaining ring in addition for what tilt.
2, the oblique shape centrifugal fan that reduces noise according to claim 1 is characterized in that: the flabellum between each retaining ring central authorities can be all oblique arrangement on same straight line of every joint, and it can be the mode that is tilted towards the upper right by the left bottom.
3, the oblique shape centrifugal fan that reduces noise according to claim 2 is characterized in that: the true dip direction that is each positioned at the flabellum on the same straight line can be the mode that is tilted towards the lower right by the upper left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93243856 CN2178800Y (en) | 1993-10-30 | 1993-10-30 | Oblique-shape centrifugal fan cabable for reducing noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93243856 CN2178800Y (en) | 1993-10-30 | 1993-10-30 | Oblique-shape centrifugal fan cabable for reducing noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2178800Y true CN2178800Y (en) | 1994-10-05 |
Family
ID=33817210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93243856 Expired - Fee Related CN2178800Y (en) | 1993-10-30 | 1993-10-30 | Oblique-shape centrifugal fan cabable for reducing noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2178800Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233324B (en) * | 2005-08-05 | 2010-07-14 | 大金工业株式会社 | Cross-flow fan made of resin and method of manufacturing the same |
| CN101900131A (en) * | 2010-07-23 | 2010-12-01 | 广东美的电器股份有限公司 | Cross-flow wind wheel and air device comprising same |
| WO2023163665A1 (en) * | 2022-02-28 | 2023-08-31 | Thammaitarasee Kritsanatatsh | 360-degree vertical tilt air cooling fan |
-
1993
- 1993-10-30 CN CN 93243856 patent/CN2178800Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233324B (en) * | 2005-08-05 | 2010-07-14 | 大金工业株式会社 | Cross-flow fan made of resin and method of manufacturing the same |
| CN101900131A (en) * | 2010-07-23 | 2010-12-01 | 广东美的电器股份有限公司 | Cross-flow wind wheel and air device comprising same |
| WO2023163665A1 (en) * | 2022-02-28 | 2023-08-31 | Thammaitarasee Kritsanatatsh | 360-degree vertical tilt air cooling fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |