CN2711425Y - High-efficient low-noise centrifugal blower fan - Google Patents
High-efficient low-noise centrifugal blower fan Download PDFInfo
- Publication number
- CN2711425Y CN2711425Y CN 200320102377 CN200320102377U CN2711425Y CN 2711425 Y CN2711425 Y CN 2711425Y CN 200320102377 CN200320102377 CN 200320102377 CN 200320102377 U CN200320102377 U CN 200320102377U CN 2711425 Y CN2711425 Y CN 2711425Y
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- CN
- China
- Prior art keywords
- centrifugal blower
- blade
- utility
- model
- efficient low
- 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 provides a high-efficient low-noise centrifugal blower fan without airfoil type vanes. The utility model is characterized in that each vane fixed on a vane rear tray is composed of more than two small vanes which are separated and partly stacked. The utility model has the advantages that the utility model can efficiently remove vortexes between two former vanes, fan total efficiency can be enhanced by about 3%-5%, and noise is greatly reduced.
Description
Technical field: the utility model relates to a kind of improved centrifugal blower, particularly a kind of high-efficient low-noise centrifugal blower.
Background technique: existing centrifugal blower, except that its blade be wing blade, the problem that nearly all has two aspects, first blower fan total pressure efficiency has the loss of 3-5%, damnous reason is due to the eddy current that is produced between two blades of impeller, its two be the noise of blower fan big, influence environment, its reason is that the single blade area is excessive, so be in operation the vibration that produced with air friction also just greatly.
Summary of the invention: the purpose of this utility model, be to solve the problem of existing two aspects of above-mentioned centrifugal blower, a kind of high-efficient low-noise centrifugal blower is proposed.Can realize the purpose of this utility model by following technical proposals, a kind of high-efficient low-noise centrifugal blower that does not comprise wing blades, comprise transmission part, casing, impeller, each blade that it is characterized in that being fixed on the blade hub disk is to be made of two stacked small leaf of above spaced portions.
Effect of the present utility model is, 1, it can eliminate the vortex phenomenon in the existing centrifugal blower effectively, can make the blower fan total pressure efficiency improve 3-5% on existing basis.2, can reduce noise significantly, this is that mainly the blade on the impeller is made up of the small leaf more than two, and the unit area of each small leaf is little, and the vibration that is produced is also little, thereby noise is greatly reduced.
Description of drawings:
Accompanying drawing 1 is the utility model schematic representation (broken section)
Accompanying drawing 2 is blade hub disk and the blade rough schematic in the utility model,
Accompanying drawing 3 is blade hub disk and the blade rough schematic in the utility model.
Embodiment: with reference to accompanying drawing 1, in the inside of casing 1, blade 2 is divided into 2 and is fixed on the blade hub disk 3, and back (by sense of rotation) of (length by blade can be divided into blade more than 2 and 2) blade 2 is stacked with last spaced portions.Blade 2 is a board-type.Referring to accompanying drawing 2, blade 2 is the garden camber, and it is divided into two and is fixed on the blade hub disk 3, thereafter one stacked with last spaced portions.Referring to accompanying drawing 3, blade 2 is a circular arc type, and it is divided into four and is fixed on the blade hub disk 3, the 2nd with the 1st (counting from lower to upper), the 3rd with the 2nd, the 4th with the 3rd to be spaced portions stacked.
Claims (1)
1, a kind of high-efficient low-noise centrifugal blower that does not comprise wing blades comprises transmission part, casing, impeller, and each blade that it is characterized in that being fixed on the blade hub disk is to be made of two stacked small leaf of above spaced portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320102377 CN2711425Y (en) | 2003-10-22 | 2003-10-22 | High-efficient low-noise centrifugal blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320102377 CN2711425Y (en) | 2003-10-22 | 2003-10-22 | High-efficient low-noise centrifugal blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2711425Y true CN2711425Y (en) | 2005-07-20 |
Family
ID=36192528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320102377 Expired - Fee Related CN2711425Y (en) | 2003-10-22 | 2003-10-22 | High-efficient low-noise centrifugal blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2711425Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200197B (en) * | 2006-12-15 | 2010-12-01 | 上海中欧汽车电器有限公司 | Automobile driving-cabin diverter |
| WO2016066112A1 (en) * | 2014-10-29 | 2016-05-06 | 珠海格力电器股份有限公司 | Centrifugal fan and air conditioner having same |
| CN109931290A (en) * | 2019-05-07 | 2019-06-25 | 泛仕达机电股份有限公司 | A kind of backward centrifugal impeller |
-
2003
- 2003-10-22 CN CN 200320102377 patent/CN2711425Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200197B (en) * | 2006-12-15 | 2010-12-01 | 上海中欧汽车电器有限公司 | Automobile driving-cabin diverter |
| WO2016066112A1 (en) * | 2014-10-29 | 2016-05-06 | 珠海格力电器股份有限公司 | Centrifugal fan and air conditioner having same |
| CN109931290A (en) * | 2019-05-07 | 2019-06-25 | 泛仕达机电股份有限公司 | A kind of backward centrifugal impeller |
| CN109931290B (en) * | 2019-05-07 | 2021-06-08 | 泛仕达机电股份有限公司 | Backward centrifugal impeller |
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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 |