CN2314131Y - Axial fan of air conditioner - Google Patents
Axial fan of air conditioner Download PDFInfo
- Publication number
- CN2314131Y CN2314131Y CN 97240300 CN97240300U CN2314131Y CN 2314131 Y CN2314131 Y CN 2314131Y CN 97240300 CN97240300 CN 97240300 CN 97240300 U CN97240300 U CN 97240300U CN 2314131 Y CN2314131 Y CN 2314131Y
- Authority
- CN
- China
- Prior art keywords
- fan
- blade
- angle
- segment
- axial
- 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
Links
Images
Abstract
The utility model relates to a cross-flow fan for an air conditioner. Blades and the cylindrical cross-flow fan form a certain included angle in an axial direction; the blades are distributed along the circumference of a flange in unequal distances; in addition, flanges with the odd number cut the cylindrical cross-flow fan into small-section fans with the even number along a radial direction; each blade in the small-section fans and the fan have the same included angle in the axial direction; the blades of at least two small-section fans and the fan have the symmetrically same included angle in the axial direction. The utility model solves the problem that the noise which is produced by that wind is blown out in an oblique direction is large. The utility model not only increases wind quantity, but also improves wind supply conditions and reduces the noise. The utility model is a cross flow type radial fluid pump.
Description
The utility model belongs to the radial fluid pump, and is particularly cross-flow.
At present, the axial-flow fan that split type room air conditioner is used, its blade is parallel with the fan axis, in the inlets and putlets of ventilation gap hour, noise is bigger; 951 006 27 disclose another kind of cross flow fan, be to increase air output, the relative fan shaft of its blade not equi-spaced apart of certain angle that tilts, but wind can only blow out to certain tangent direction, reduces the effect of noise and not obvious.
The purpose of this utility model is to design a kind of air conditioner axial-flow fan of low noise.
The utility model comprises blade and flange plate, a plurality of blades form the tubular axial-flow fan along the circumferential arrangement of a pair of flange plate, blade and tubular axial-flow fan axially are certain included angle, blade is not equally spaced along the circumference of flange plate, other has the odd number flange plate that above-mentioned tubular axial-flow fan radially is cut into even number segment fan, each blade in the segment fan and fan shaft to angle be identical, the blade of at least two segment fans and fan shaft to angle be that symmetry is identical.
The angle of inclination symmetry of the blade of the per two segment fans of the utility model is identical, has both increased air quantity, has improved the air-supply condition again, and noise reduces greatly.
Fig. 1: embodiment 1 outline drawing
Fig. 2: embodiment 2 outline drawing
Fig. 3: A-A profile among Fig. 1
Below in conjunction with accompanying drawing embodiment is elaborated:
As shown in Figure 1: present embodiment comprises blade 1 and flange plate 2, a plurality of blades 1 form the tubular axial-flow fan along the circumferential arrangement of a pair of flange plate 2, blade 1 axially is certain included angle θ 1 with the tubular axial-flow fan, and other has five flange plate 2 that above-mentioned tubular axial-flow fan radially is cut into six segment fans 3; Each blade 1 in the segment fan 3 and fan shaft to angle be identical: as counting from left to right, each blade 1 in first segment fan 3 and fan shaft to angle all be θ 1; The blade 1 of at least two segment fans 3 and fan shaft to angle be that symmetry is identical: as the blade 1 of first segment fan 3 and fan shaft to angle be θ 1, and the blade 1 of the 6th segment fan 3 and fan shaft to angle be θ 2, θ 1 is symmetrical identical with θ 2; Equally, the blade 1 of second segment fan 3 and fan shaft to angle and the blade 1 of the 5th segment fan 3 and fan shaft to angle be that symmetry is identical; The blade 1 of the 3rd segment fan 3 and fan shaft to angle and the blade 1 of the 4th segment fan 3 and fan shaft to angle be that symmetry is identical; Like this, present embodiment looks from profile and resembles " people " font or " V " font.Because the angle of inclination symmetry of the blade of per two segment fans is identical, has both increased air quantity, has improved the air-supply condition again, noise reduces greatly.
As shown in Figure 2: present embodiment comprises blade 4 and flange plate 5, a plurality of blades 4 form the tubular axial-flow fan along the circumferential arrangement of a pair of flange plate 5, blade 4 axially is certain included angle θ 3 with the tubular axial-flow fan, and other has five flange plate 5 that above-mentioned tubular axial-flow fan radially is cut into six segment fans 6; Each blade 4 in the segment fan 6 and fan shaft to angle be identical: as counting from left to right, each blade 1 in first segment fan 6 and fan shaft to angle all be θ 3; The blade 4 of at least two segment fans 6 and fan shaft to angle be that symmetry is identical: as the blade 4 of first segment fan 6 and fan shaft to angle be θ 3, and the blade 4 of second segment fan 6 and fan shaft to angle be θ 4, θ 3 is symmetrical identical with θ 4; Equally, the blade 4 of the 5th segment fan 6 and fan shaft to angle and the blade 4 of the 6th segment fan 6 and fan shaft to angle be that symmetry is identical; The blade 4 of the 3rd segment fan 6 and fan shaft to angle and the blade 4 of the 4th segment fan 6 and fan shaft to angle be that symmetry is identical; Like this, present embodiment looks from profile and resembles " wave " shape or " broken line " shape.Because the angle of inclination symmetry of the blade of per two segment fans is identical, has both increased air quantity, has improved the air-supply condition again, noise reduces greatly.
As shown in Figure 3: a plurality of blades 1 form the tubular axial-flow fan along the circumferential arrangement of flange plate 2 among the embodiment 1, blade 1 is not equally spaced along flange plate 2 circumference, this shows that the distance between each blade 1 has nothing in common with each other, no certain rules, just represented among the figure, blade 1 can have two or more not sub-multiple angle α, β ... circumference along flange plate 2 is staggered.
In embodiment 2, blade 4 also is not to be equally spaced along flange plate 5 circumference equally, and blade 4 can have two or more not sub-multiple angle α, β ... be staggered along flange plate 5 circumference, this specification no longer repeats this figure that draws.
The foregoing description is only enumerated the arrangement of two kinds of comparison rule, be among the embodiment 1 in each segment fan the axial angle of blade and tubular axial-flow fan be to be symmetry axis and symmetry is identical with middle flange plate, and embodiment 2 is that the axial angle of blade and tubular axial-flow fan is symmetrical identical in every adjacent segment fan; If irregular alignment; but the blade that satisfies two segment fans and fan shaft to angle be this symmetrical identical condition; still belong to the utility model protection domain; be example also with six segment fans; first and second, the the 3rd and the 6th, the 4th and the axial angle of the blade of the 5th segment fan and tubular axial-flow fan be that symmetry is identical; perhaps first and the 5th, second and the 6th, the axial angle of the blade of the 3rd and the 4th segment fan and tubular axial-flow fan is that symmetry is identical; or the like; all be feasible, just enumerated no longer one by one here.
Claims (3)
1. air conditioner axial-flow fan, comprise blade and flange plate, a plurality of blades form the tubular axial-flow fan along the circumferential arrangement of a pair of flange plate, blade and tubular axial-flow fan axially are certain included angle, blade is not equally spaced along the circumference of flange plate, it is characterized in that: other has the odd number flange plate that above-mentioned tubular axial-flow fan radially is cut into even number segment fan, each blade in the segment fan and fan shaft to angle be identical, the blade of at least two segment fans and fan shaft to angle be that symmetry is identical.
2. air conditioner axial-flow fan according to claim 1 is characterized in that: the axial angle of the blade in the adjacent segment fan and tubular axial-flow fan is that symmetry is identical.
3. air conditioner axial-flow fan according to claim 1 is characterized in that: the axial angle of blade and tubular axial-flow fan is to be symmetry axis and symmetry is identical with middle flange plate in each segment fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97240300 CN2314131Y (en) | 1997-07-08 | 1997-07-08 | Axial fan of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97240300 CN2314131Y (en) | 1997-07-08 | 1997-07-08 | Axial fan of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2314131Y true CN2314131Y (en) | 1999-04-14 |
Family
ID=33950091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97240300 Expired - Fee Related CN2314131Y (en) | 1997-07-08 | 1997-07-08 | Axial fan of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2314131Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307660A (en) * | 2012-03-16 | 2013-09-18 | Lg电子株式会社 | An air conditioner |
| CN104747493A (en) * | 2013-12-26 | 2015-07-01 | 珠海格力电器股份有限公司 | Air conditioner and cross flow blade thereof |
| CN107588041A (en) * | 2017-09-07 | 2018-01-16 | 珠海格力电器股份有限公司 | Tubular wine wheel and air conditioner |
| CN112576524A (en) * | 2020-12-04 | 2021-03-30 | 重庆海尔空调器有限公司 | Cross-flow fan and air conditioner with same |
-
1997
- 1997-07-08 CN CN 97240300 patent/CN2314131Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307660A (en) * | 2012-03-16 | 2013-09-18 | Lg电子株式会社 | An air conditioner |
| CN103307660B (en) * | 2012-03-16 | 2016-06-08 | Lg电子株式会社 | Air-conditioning |
| CN104747493A (en) * | 2013-12-26 | 2015-07-01 | 珠海格力电器股份有限公司 | Air conditioner and cross flow blade thereof |
| CN107588041A (en) * | 2017-09-07 | 2018-01-16 | 珠海格力电器股份有限公司 | Tubular wine wheel and air conditioner |
| CN112576524A (en) * | 2020-12-04 | 2021-03-30 | 重庆海尔空调器有限公司 | Cross-flow fan and air conditioner with same |
| CN112576524B (en) * | 2020-12-04 | 2023-04-14 | 重庆海尔空调器有限公司 | Cross-flow fan and air conditioner with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6739835B2 (en) | Blade part in turbofan | |
| AU2002225445B2 (en) | Fan guard of fan unit | |
| CN100441881C (en) | Axial fan | |
| US20050186070A1 (en) | Fan assembly and method | |
| CN204783851U (en) | Airflow fence and fan | |
| CN102269169A (en) | Through-flow fan and air-conditioner provided with same | |
| ITTO20000843A1 (en) | TRANSVERSAL FLOW FAN OF AN AIR CONDITIONER. | |
| CN2314131Y (en) | Axial fan of air conditioner | |
| KR100393993B1 (en) | Axial fan | |
| KR20030067720A (en) | Air conditioner | |
| CN101994707B (en) | Airflow generation device | |
| CN105387592A (en) | Air-conditioner | |
| CN100501170C (en) | Through-flow fan impeller | |
| CN201687736U (en) | Cross flow fan and air conditioner with same | |
| US9388823B2 (en) | Centrifugal fan, molding die, and fluid feeder | |
| JP2002048085A (en) | Impeller for compound multiblade blower, compound multiblade blower and air conditioner | |
| CN113074131A (en) | Fan structure | |
| CN2405047Y (en) | Tubular air fan for air conditioner | |
| JPH09137970A (en) | Outdoor unit for air conditioner | |
| CN2402847Y (en) | Cross flow fan for air conditioner | |
| JP2002357194A (en) | Cross-flow fan | |
| JPH08159099A (en) | Axial flow fan | |
| CN210921589U (en) | Centrifugal wind wheel and air conditioner | |
| AU2019236795A1 (en) | Propeller fan | |
| CN220850128U (en) | Middle section fan blade and cross-flow fan |
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 |