CN102734213A - Centrifugal fan impeller structure for ceiling mounted air conditioner - Google Patents
Centrifugal fan impeller structure for ceiling mounted air conditioner Download PDFInfo
- Publication number
- CN102734213A CN102734213A CN201210206575XA CN201210206575A CN102734213A CN 102734213 A CN102734213 A CN 102734213A CN 201210206575X A CN201210206575X A CN 201210206575XA CN 201210206575 A CN201210206575 A CN 201210206575A CN 102734213 A CN102734213 A CN 102734213A
- Authority
- CN
- China
- Prior art keywords
- unequal
- blade
- impeller
- impeller body
- blades
- 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
Abstract
The invention provides a centrifugal fan impeller structure for a ceiling mounted air conditioner. The centrifugal fan impeller structure comprises an impeller body; blades are non-uniformly distributed on the impeller body along the circumferential direction of the impeller body; meanwhile, radial included angles a between all the blades and the impeller body are different, namely a1 is unequal to a2, a2 is unequal to a3, a3 is unequal to a4, and the like, and a1+a2+a3+a4, and ...=360 degrees; and circle center included angles b between adjacent blades are different, namely b1 is unequal to b2, b2 is unequal to b3, b3 is unequal to b4, and the like, and b1+b2+b3+b4, ...=360 degrees. By adopting the technical scheme, the centrifugal fan impeller structure has the advantages the blades which are non-uniformly distributed can flap air around the blades in a non-periodical way, so the fundamental-frequency noise of a fan can be effectively reduced, and the aims of reducing the noise of the whole ceiling mounted air conditioner can be fulfilled.
Description
Technical field
The present invention relates to the technical field of air-conditioning smallpox machine, refer in particular to a kind of centrifugal blower fan blade wheel structure of air-conditioning smallpox machine.
Background technique
Convention in the industry, the layout of the centrifugal fan blade of existing air-conditioning smallpox machine generally all is even distribution, promptly is that the angle between the adjacent blades equates; This structural design can increase the Rotation Noise of blower fan, when rotational noise is the active wheel rotation, and the gas medium around the blade on the wheel hits; The pressure pulsation that causes ambient gas forms, for given space particle, whenever blade pass is out-of-date; The pressure that hits this particle gas just rises and falls once rapidly, and rotation blade skims over continuously one by one, just constantly produces pressure pulsation; Cause the very big nonuniformity of air-flow, thus radiated noise towards periphery.Can cause blade periodically to pat ambient air like this, and air-flow form the fundamental frequency noise, thereby causes air-conditioning smallpox machine overall noise bigger periodically to spiral case formation bump.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing technology, provide a kind of reasonable in design reliable, can reduce the fundamental frequency noise of blower fan effectively, reduce the centrifugal blower fan blade wheel structure of the air-conditioning smallpox machine of air-conditioning smallpox machine overall noise.
For realizing above-mentioned purpose; Technological scheme provided by the present invention is: a kind of centrifugal blower fan blade wheel structure of air-conditioning smallpox machine, include impeller body, and its blade heterogeneity that circumferentially distributes of described impeller body upper edge distributes; Simultaneously; Not of uniform size the causing of radially angle a of every blade and impeller body is specially a1 ≠ a2 ≠ a3 ≠ a4......, and a1+a2+a3+a4+......=360 °; Not of uniform size the causing of center of circle angle b between adjacent blades is specially b1 ≠ b2 ≠ b3 ≠ b4......, and b1+b2+b3+b4+......=360 °.
Described impeller body includes blade, motor cabinet, wind loop, impeller hub disk; Wherein, Described motor cabinet correspondence is located at the intermediate portion of impeller hub disk, and simultaneously, this impeller hub disk and wind loop are parallel; The blade correspondence is located between this impeller hub disk and the wind loop, and is fixedly connected with them respectively.
The present invention is after having adopted such scheme; Its great advantage is that the present invention passes through the blade that heterogeneity distributes; But make blade aperiodicity ground pat ambient air, effectively reduce the fundamental frequency noise of blower fan, reach the purpose that reduces air-conditioning smallpox machine overall noise.
Description of drawings
Fig. 1 is an axonometric drawing of the present invention.
Fig. 2 is a plan view of the present invention.
Embodiment
Below in conjunction with specific embodiment the present invention is described further.
With shown in the accompanying drawing 2, the centrifugal blower fan blade wheel structure of the described air-conditioning smallpox of present embodiment machine includes impeller body 1 referring to accompanying drawing 1; Wherein, said impeller body 1 includes blade 2, motor cabinet 3, wind loop 4, impeller hub disk 5, and described motor cabinet 3 correspondences are located at the intermediate portion of impeller hub disk 5; Simultaneously, this impeller hub disk 5 is parallel with wind loop 4, and blade 2 correspondences are located between this impeller hub disk 5 and the wind loop 4; And be fixedly connected with them respectively, and, the of paramount importance circumferential heterogeneity distribution that is the described blade 2 of present embodiment along impeller body 1; Simultaneously; Not of uniform size the causing of radially angle a of every blade 2 and impeller body 1 is specially a1 ≠ a2 ≠ a3 ≠ a4 ≠ a5 ≠ a6 ≠ a7, and a1+a2+a3+a4+a5+a6+a7=360 °; Not of uniform size the causing of center of circle angle b that adjacent blades is 2 is specially b1 ≠ b2 ≠ b3 ≠ b4 ≠ b5 ≠ b6 ≠ b7, and b1+b2+b3+b4+b5+b6+b7=360 °.But this structural design makes blade 2 aperiodicity of the present invention ground pat ambient air, effectively reduces the fundamental frequency noise of blower fan, reaches the purpose that reduces air-conditioning smallpox machine overall noise.Therefore, in sum, compare existing technology, the present invention can effectively solve the drawback that existing technology exists, and has improved the total quality of air-conditioning smallpox machine to a certain extent, is worthy to be popularized.
The examples of implementation of the above only are the present invention's preferred embodiment, are not to limit practical range of the present invention with this, so the variation that all shapes according to the present invention, principle are done all should be encompassed in protection scope of the present invention.
Claims (2)
1. the centrifugal blower fan blade wheel structure of an air-conditioning smallpox machine; Include impeller body (1); It is characterized in that: its blade (2) heterogeneity that circumferentially distributes of described impeller body (1) upper edge distributes, simultaneously, and not of uniform size the causing of radially angle a of every blade (2) and impeller body (1); Be specially a1 ≠ a2 ≠ a3 ≠ a4......, and a1+a2+a3+a4+......=360 °; Not of uniform size the causing of center of circle angle b between adjacent blades (2) is specially b1 ≠ b2 ≠ b3 ≠ b4......, and b1+b2+b3+b4+......=360 °.
2. the centrifugal blower fan blade wheel structure of a kind of air-conditioning smallpox machine according to claim 1; It is characterized in that: described impeller body (1) includes blade (2), motor cabinet (3), wind loop (4), impeller hub disk (5); Wherein, Described motor cabinet (3) correspondence is located at the intermediate portion of impeller hub disk (5), and simultaneously, this impeller hub disk (5) is parallel with wind loop (4); Blade (2) correspondence is located between this impeller hub disk (5) and the wind loop (4), and is fixedly connected with them respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210206575XA CN102734213A (en) | 2012-06-21 | 2012-06-21 | Centrifugal fan impeller structure for ceiling mounted air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210206575XA CN102734213A (en) | 2012-06-21 | 2012-06-21 | Centrifugal fan impeller structure for ceiling mounted air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734213A true CN102734213A (en) | 2012-10-17 |
Family
ID=46990298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210206575XA Pending CN102734213A (en) | 2012-06-21 | 2012-06-21 | Centrifugal fan impeller structure for ceiling mounted air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734213A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329290A (en) * | 2014-10-29 | 2015-02-04 | 珠海格力电器股份有限公司 | Centrifugal fan and air conditioner with centrifugal fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1185547A (en) * | 1996-08-08 | 1998-06-24 | 三洋电机株式会社 | Impeller for centrifugal fan |
| JP2894640B2 (en) * | 1991-01-22 | 1999-05-24 | 松下冷機株式会社 | Centrifugal blower |
| CN1661240A (en) * | 2004-02-25 | 2005-08-31 | Lg电子株式会社 | Blower fan structure |
| CN201547015U (en) * | 2009-11-17 | 2010-08-11 | 广东美的电器股份有限公司 | Low-noise centrifugal wind wheel |
| CN201747672U (en) * | 2010-06-21 | 2011-02-16 | 珠海格力电器股份有限公司 | Centrifugal wind wheel |
| CN202789706U (en) * | 2012-06-21 | 2013-03-13 | 广东志高空调有限公司 | Centrifugal fan impeller structure of air-conditioner ceiling machine |
-
2012
- 2012-06-21 CN CN201210206575XA patent/CN102734213A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2894640B2 (en) * | 1991-01-22 | 1999-05-24 | 松下冷機株式会社 | Centrifugal blower |
| CN1185547A (en) * | 1996-08-08 | 1998-06-24 | 三洋电机株式会社 | Impeller for centrifugal fan |
| CN1661240A (en) * | 2004-02-25 | 2005-08-31 | Lg电子株式会社 | Blower fan structure |
| CN201547015U (en) * | 2009-11-17 | 2010-08-11 | 广东美的电器股份有限公司 | Low-noise centrifugal wind wheel |
| CN201747672U (en) * | 2010-06-21 | 2011-02-16 | 珠海格力电器股份有限公司 | Centrifugal wind wheel |
| CN202789706U (en) * | 2012-06-21 | 2013-03-13 | 广东志高空调有限公司 | Centrifugal fan impeller structure of air-conditioner ceiling machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329290A (en) * | 2014-10-29 | 2015-02-04 | 珠海格力电器股份有限公司 | Centrifugal fan and air conditioner with centrifugal fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104641121B (en) | Propeller type fan and possess the air conditioner of this propeller type fan | |
| JP2013011239A (en) | Impeller and centrifugal fan having the same | |
| CN102959250A (en) | Multi-blade centrifugal fan and air conditioner using same | |
| CN104806565A (en) | Centrifugal impeller, fan and household device | |
| CN104806566A (en) | Centrifugal impeller, fan and household device | |
| US20110031786A1 (en) | Centrifugal air blower and automobile seat | |
| CN201547015U (en) | Low-noise centrifugal wind wheel | |
| CN102536900A (en) | Axial flow wind wheel | |
| CN204176804U (en) | Air-conditioner outdoor unit and air outlet grate thereof | |
| CN202789706U (en) | Centrifugal fan impeller structure of air-conditioner ceiling machine | |
| CN102734213A (en) | Centrifugal fan impeller structure for ceiling mounted air conditioner | |
| CN101368575A (en) | Fan impeller | |
| JP2020518761A (en) | Impeller, fan and motor | |
| CN203730399U (en) | Axial flow impeller and axial flow fan | |
| CN102758802A (en) | Protection cover, fan assembly and air conditioner outdoor machine | |
| CN102086887A (en) | Axial fan | |
| CN102828995A (en) | Cooling fan | |
| CN103195747B (en) | Impeller of air conditioner | |
| CN104895838A (en) | Axial flow blade and axial flow fan | |
| CN203175971U (en) | Oblique flow centrifugal impeller used on air conditioner | |
| CN104912845A (en) | Blowing and sucking machine | |
| CN103174673B (en) | Plastics blast device on air-conditioning | |
| US11635088B1 (en) | Cooling fan | |
| CN103174674A (en) | Oblique flow centrifugal impeller for air conditioner | |
| CN202326420U (en) | Axial flow fan blade of ventilation fan |
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: 20121017 |