CN2535587Y - Positive-negative air-blowing through flow fan - Google Patents
Positive-negative air-blowing through flow fan Download PDFInfo
- Publication number
- CN2535587Y CN2535587Y CN 02212708 CN02212708U CN2535587Y CN 2535587 Y CN2535587 Y CN 2535587Y CN 02212708 CN02212708 CN 02212708 CN 02212708 U CN02212708 U CN 02212708U CN 2535587 Y CN2535587 Y CN 2535587Y
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- CN
- China
- Prior art keywords
- flow fan
- axial
- air conditioner
- blade
- fan
- 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 - Lifetime
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Abstract
The utility model provides a reversible-wind through-flow fan with an improved fan vane structure, which comprises flanges on the two ends, a rotation shaft, a middle wind wheel and a fan vane. The utility model is characterized in that the back of the upper portion of the fan vane is provided with a section of arc which is opposite to the bending direction of the whole fan vane. The longitudinal section of the fan vane of the through-flow fan is S-shaped. The back of the upper portion of the fan vane is provided with a projection, and the bottom of the projection is the arc which is opposite to the bending direction of the whole fan vane. A bidirectional wind air conditioner comprises the through-flow fan and a bidirectional wind shell with wind fences respectively arranged on the upper portion and the lower portion, the air conditioner is characterized in that the air conditioner is provided with one through-flow fan, the back of the upper portion of the fan vane of the through-flow fan is provided with a section of arc which is opposite to the bending direction of the whole fan vane. When the arc rotates reversely, wind in reverse direction can be generated, and thereby the air conditioner adopting only one through-flow fan can realize the function of generating upwards wind and downwards wind. The utility model is simple in structure, convenient to produce, low in costs and does not enlarge the volume of the air conditioner.
Description
Technical field
The utility model belongs to the improvement of air conditioner axial-flow fan, is a kind of forward and reverse blowing axial-flow fan specifically.
Background technique
In existing air conditioner, occur for improving air-supply effect air conditioner existing two-way or the four-way air-out.But this class air conditioner must the plural fan of configuration.Both increase the fabricating cost of transmission part and air conditioner, strengthened the air conditioner volume again.And existing axial-flow fan blade all is provided with by same sense of rotation, can only be with a kind of sense of rotation blowing, if also can only realize unidirectional air-supply with the air conditioner of a this axial-flow fan.
Summary of the invention
The utility model is at the deficiencies in the prior art, and a kind of axial-flow fan that improves fan blade is provided, and its forward and reverse rotation all can be dried, and like this, only adopts the air conditioner of an axial-flow fan just can realize two-way air-out.
Technical solutions of the utility model are: a kind of forward and reverse blowing axial-flow fan comprises flange plate, rotating shaft, middle wind wheel and the blade at two ends it is characterized in that the back side on described blade top is provided with one section cambered surface opposite with the blade integral bending direction.
The blade longitudinal section of described axial-flow fan is a S shape.
On the back side on described blade top a projection is set, the bottom surface of projection is the cambered surface opposite with the blade integral bending direction.
A kind of forward and reverse blowing axial-flow fan air conditioner, the housing and the axial-flow fan that comprise the two-way air-out that is equipped with outlet grid up and down, it is characterized in that described axial-flow fan is one, the back side on axial-flow fan blade top is provided with one section cambered surface opposite with the blade integral bending direction.
Described air conditioner axial-flow fan blade longitudinal section is a S shape.
On the back side on described air conditioner axial-flow fan blade top a projection is set, the bottom surface of projection is the cambered surface opposite with the blade integral bending direction.
The utility model compared with prior art has many advantages and good effect:
Because of the back side on air conditioner axial-flow fan blade of the present utility model top is provided with one section cambered surface opposite with the blade integral bending direction, this cambered surface can oppositely be dried when axial-flow fan reverses.So, only adopt the air conditioner of an axial-flow fan just can realize the two-way air-out function of upwards air-out and downward air-out.It is simple in structure, and is easy to make, and cost is lower, and can not strengthen the air conditioner volume.
Description of drawings
Fig. 1 has the axial-flow fan cross-sectional view of projection for a kind of its vacuum side of blade of the utility model;
Fig. 2 is an A place partial enlarged drawing among Fig. 1;
The axial-flow fan cross-sectional view that Fig. 3 is a S shape for a kind of its blade longitudinal section of the utility model;
Fig. 4 is a B place partial enlarged drawing among Fig. 3;
The schematic representation that Fig. 5 upwards blows a cold wind over for the utility model wall-hanging air conditioner;
Fig. 6 is the schematic representation of the downward blowing hot-air of the utility model wall-hanging air conditioner.
Embodiment
Among the figure, 1, axial-flow fan; 2, blade; 3, go up outlet grid; 4, housing; 5, following outlet grid.
Referring to Fig. 1, Fig. 2, on the back side on blade 2 tops of described two-way air-out air conditioner axial-flow fan 1 projection is set, the bottom surface of projection is and the opposite cambered surface of blade 2 integrally bending directions.
Referring to Fig. 3, Fig. 4, blade 2 longitudinal sections of described two-way air-out air conditioner axial-flow fan 1 are S shape.
Referring to Fig. 5, Fig. 6, a kind of two-way air conditioner that goes out only disposes a two-way air-out axial-flow fan 1, and when axial-flow fan 1 was rotated in the forward, its blade 2 main bodys rotation air-out just can upwards be blown a cold wind over by the outlet grids 3 above the housing 4; When axial-flow fan 1 counterrotating, by the reverse cambered surface rotation air-out in its blade 2 main body back sides and top, the outlet grid 5 downward blowing hot-airs below housing 4.Thereby the wall-hanging air conditioner of having realized only adopting an axial-flow fan 1 just can be realized the function of two-way air-out.
Claims (6)
1, a kind of forward and reverse blowing axial-flow fan comprises flange plate, rotating shaft, middle wind wheel and the blade at two ends it is characterized in that the back side on described blade top is provided with one section cambered surface opposite with the blade integral bending direction.
2, according to the described forward and reverse blowing axial-flow fan of claim 1, the blade longitudinal section that it is characterized in that described axial-flow fan is a S shape.
3, according to the described forward and reverse blowing axial-flow fan of claim 1, it is characterized in that on the back side on described blade top a projection being set, the bottom surface of projection is the cambered surface opposite with the blade integral bending direction.
4, a kind of forward and reverse blowing axial-flow fan air conditioner, the housing and the axial-flow fan that comprise the two-way air-out that is equipped with outlet grid up and down, it is characterized in that described axial-flow fan is one, the back side on axial-flow fan blade top is provided with one section cambered surface opposite with the blade integral bending direction.
5, according to the described forward and reverse blowing axial-flow fan air conditioner of claim 4, it is characterized in that described axial-flow fan blade longitudinal section is a S shape.
6, according to the described forward and reverse blowing axial-flow fan air conditioner of claim 4, it is characterized in that on the back side on described axial-flow fan blade top a projection being set, the bottom surface of projection is the cambered surface opposite with the blade integral bending direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02212708 CN2535587Y (en) | 2002-02-01 | 2002-02-01 | Positive-negative air-blowing through flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02212708 CN2535587Y (en) | 2002-02-01 | 2002-02-01 | Positive-negative air-blowing through flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2535587Y true CN2535587Y (en) | 2003-02-12 |
Family
ID=33692345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02212708 Expired - Lifetime CN2535587Y (en) | 2002-02-01 | 2002-02-01 | Positive-negative air-blowing through flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2535587Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967006A (en) * | 2012-12-21 | 2013-03-13 | 青岛海尔空调电子有限公司 | Embedded air conditioner internal unit with spiral fan |
| CN104564808A (en) * | 2014-04-11 | 2015-04-29 | 林钧浩 | Down-flow pressurizing energy-saving fan |
| CN105389953A (en) * | 2015-12-02 | 2016-03-09 | 天津爱维数据系统集成科技有限公司 | Gas monitor capable of automatic exhausting |
| CN105917123A (en) * | 2013-10-28 | 2016-08-31 | 诺沃皮尼奥内股份有限公司 | Centrifugal compressor impeller with blades having S-shaped trailing edge |
| CN107131148A (en) * | 2017-07-10 | 2017-09-05 | 宁波有铭电器有限公司 | Tubular wine wheel, cross flow fan and air-supply arrangement |
| CN109026828A (en) * | 2018-09-12 | 2018-12-18 | 珠海格力电器股份有限公司 | Cross-flow fan blade and air conditioner |
| CN113565793A (en) * | 2020-04-29 | 2021-10-29 | 青岛海尔空调电子有限公司 | Compressor impeller and compressor |
-
2002
- 2002-02-01 CN CN 02212708 patent/CN2535587Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967006A (en) * | 2012-12-21 | 2013-03-13 | 青岛海尔空调电子有限公司 | Embedded air conditioner internal unit with spiral fan |
| CN102967006B (en) * | 2012-12-21 | 2015-04-29 | 青岛海尔空调电子有限公司 | Embedded air conditioner internal unit with spiral fan |
| CN105917123A (en) * | 2013-10-28 | 2016-08-31 | 诺沃皮尼奥内股份有限公司 | Centrifugal compressor impeller with blades having S-shaped trailing edge |
| CN104564808A (en) * | 2014-04-11 | 2015-04-29 | 林钧浩 | Down-flow pressurizing energy-saving fan |
| CN105389953A (en) * | 2015-12-02 | 2016-03-09 | 天津爱维数据系统集成科技有限公司 | Gas monitor capable of automatic exhausting |
| CN107131148A (en) * | 2017-07-10 | 2017-09-05 | 宁波有铭电器有限公司 | Tubular wine wheel, cross flow fan and air-supply arrangement |
| CN109026828A (en) * | 2018-09-12 | 2018-12-18 | 珠海格力电器股份有限公司 | Cross-flow fan blade and air conditioner |
| CN109026828B (en) * | 2018-09-12 | 2023-11-03 | 珠海格力电器股份有限公司 | Cross-flow fan blade and air conditioner |
| CN113565793A (en) * | 2020-04-29 | 2021-10-29 | 青岛海尔空调电子有限公司 | Compressor impeller and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120201 Granted publication date: 20030212 |