CN2556403Y - Two-way ventilating cross flow fan vane - Google Patents
Two-way ventilating cross flow fan vane Download PDFInfo
- Publication number
- CN2556403Y CN2556403Y CN 02221177 CN02221177U CN2556403Y CN 2556403 Y CN2556403 Y CN 2556403Y CN 02221177 CN02221177 CN 02221177 CN 02221177 U CN02221177 U CN 02221177U CN 2556403 Y CN2556403 Y CN 2556403Y
- Authority
- CN
- China
- Prior art keywords
- blade
- flow fan
- cross flow
- impeller
- unit
- 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 two-way ventilating cross flow fan vane and relates to a cross flow fan, in particular relating to an improvement of an impeller structure of a cross flow fan. The impeller consists of two or more than two single-section wheels. Each single-section wheel comprises a blade and a chassis fixedly connected with the blade; wherein, at least one single-section wheel is provided with a backward blade, and the single-section wheels of the rests are provided with a forward blade with a direction opposite to that of the backward blade. Each single-section wheel is separated by the chassis, or the backward blade is replaced by a radial blade. The impeller also can be formed by common combination of the single-section wheel of the forward blade, the single-section wheel of the backward blade and the single-section wheel of the radial blade. The utility model changes the condition of single air direction provided by a machine, and can provide air feeding of a plurality of directions based on the demand of the using, which greatly facilitates the users.
Description
Technical field
The utility model relates to cross flow fan, is specifically related to the improvement of cross flow fan blade wheel structure.
Background technique
Cross flow fan is straight and evenly meet people to comfortable requirement with the wind that blows out, and particularly its noise is relatively low, so it is extensively applied to the indoor set part of family expenses detachable air conditioner.Indoor set all is unidirectional air-supply usually, in case indoor set is fixed, then the direction of its air-supply is also just determined.In actual use, the user can there are differences the demand of cold wind, hot blast, and different time such as daytime, demand at night also can there are differences, and therefore usually wishes to change air supply direction.But in the wall indoor unit of prior art, the impeller of its cross flow fan adopts isometrical or waney (forward direction) in the same way blade usually, and the wind direction of sending is identical.When the user need change wind direction, can only rely on the position of guide plate on the adjustment housings, make wind direction fine tune in 90 ° of scopes, still can not satisfy multiple demand well.
Summary of the invention
The purpose of this utility model is, at deficiency of the prior art, the blade of existing cross flow fan made improvements, thereby the cross flow fan impeller of the two-way air-supply of a kind of energy is provided.
The purpose of this utility model realizes in the following manner.
Cross flow fan impeller of the present utility model, constitute by two or more single-unit wheels, each single-unit wheel comprises blade and the chassis that is connected with it, it is characterized in that, what have the last installation of a single-unit wheel at least is backward inclined blade, what all the other single-unit wheels were gone up installation is the opposite forward direction blade of direction, is separated by the chassis between each single-unit wheel.Described backward inclined blade also can be replaced by radial blade; Or same impeller constitutes by having forward direction blade single-unit wheel, backward inclined blade single-unit wheel, radial blade single-unit wheel.
For fan impeller,, can be divided into forward direction blade, backward inclined blade and radial blade according to the difference of its blade exit setting angle.Use the impeller of forward direction blade, have the distance characteristic far away that gas dynamic pressure is higher, air-flow is not random, air-flow transmits of acquisition; Use backward inclined blade to have the efficient advantage of higher; Radial blade is placed in the middle.From physical dimension, under the certain situation of wheel speed and air flow rate, reach identical dynamic pressure, use the impeller diameter minimum of forward direction blade.In view of above reason, used for indoor machine cross flow fan impeller blade of the prior art all adopts the forward direction blade, to guarantee air-supply effect and physical dimension.Used for indoor machine cross flow fan impeller described in the utility model, the single-unit that forward direction blade and backward inclined blade are installed is simultaneously taken turns, and perhaps also have the single-unit wheel of radial blade simultaneously, and the appropriate position on the air channel is provided with two snail tongues and two exhaust outlets.When wheel rotation, several single-unit wheel air-out air quantity that are in the forward direction blade on the impeller are bigger, and the distance that transmits is far away; The single-unit wheel air-out air quantity that is in radial blade, backward inclined blade is less, and the close together that transmits.When the impeller backward rotation, forward direction blade original on the impeller becomes backward inclined blade, then becomes the forward direction blade to blade, and at this moment corresponding wind channels changes, and is sent by another exhaust outlet.In actual use, can by the single-unit wheel with forward direction blade, radial blade, backward inclined blade of varying number is set, reach the different exhaust outlets of control and have the purpose of different air quantity according to using needs.For example, the single-unit wheel with forward direction blade is identical with the number of the single-unit wheel with backward inclined blade, successively alternately; Perhaps, the ratio with number of forward direction blade, backward inclined blade, radial blade single-unit wheel is 2: 1: 1; Perhaps, the single-unit wheel with forward direction blade and the single-unit wheel number with backward inclined blade are 2: 1 or the like.Under the fixed situation of structure, i.e. under the situation of product protection, the user also can regulate air-out direction and air quantity by changing the sense of rotation of impeller.Compared to existing technology, the utility model has changed the situation that a machine can only be sent single wind direction, is more convenient for using.
Description of drawings
Be further described below by embodiment and accompanying drawing thereof.
Fig. 1 is a kind of example structure schematic representation of impeller described in the utility model.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
Embodiment
In impeller embodiment shown in Figure 1, be combined into an impeller integral body by a plurality of single-unit wheels, the single-unit wheel with forward direction blade is identical with the number of the single-unit wheel with backward inclined blade, successively alternately.Wherein (1) has the single-unit wheel of forward direction blade for first, and (2) have the single-unit wheel of backward inclined blade for first, and are alternate successively before and after the installation direction of remaining single-unit wheel upper blade.(3) be first single-unit wheel chassis, (4) are for being installed in the axle sleeve on this single-unit wheel chassis, in order to be connected with motor.(5) be rotatingshaft.Connection and mounting type between described single-unit wheel chassis, axle sleeve, the rotatingshaft three are same as the prior art.
Expressed distribution situation among Fig. 2 with backward inclined blade in the backward inclined blade single-unit wheel.(6) for having established angle greater than 90 ° backward inclined blade.Arrow has been represented the sense of rotation of impeller among the figure.
Expressed distribution situation among Fig. 3 with forward direction blade in the forward direction blade single-unit wheel.(7) for having established angle less than 90 ° forward direction blade.Arrow has been represented the sense of rotation of impeller among the figure.
With single-unit wheel that has the forward direction blade in the impeller and the single-unit wheel with backward inclined blade with 2: 1 ratio successively alternately, replacing originally all is the impeller of forward direction blade, is applied in the indoor set of former model to carry out air quantity and noise testing.Experimental result shows that when this impeller was just changeing, its air quantity was 70% of a former model; When this impeller reversed, the air quantity of another air port outflow was 40% of a former model thereafter; Its noise has comparatively significantly reduction.
Claims (3)
1. the cross flow fan impeller of a two-way air-supply, constitute by two or more single-unit wheels, each single-unit wheel comprises blade and the chassis that is connected with it, it is characterized in that, what have the last installation of a single-unit wheel at least is backward inclined blade, what all the other single-unit wheels were gone up installation is the opposite forward direction blade of direction, is separated by the chassis between each single-unit wheel.
2. the cross flow fan impeller of two-way air-supply as claimed in claim 1 is characterized in that, described backward inclined blade also can be replaced by radial blade.
3. the cross flow fan impeller of two-way air-supply as claimed in claim 1 is characterized in that, take turns by having, the backward inclined blade single-unit is taken turns by forward direction blade single-unit for described impeller, radial blade single-unit wheel constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02221177 CN2556403Y (en) | 2002-06-10 | 2002-06-10 | Two-way ventilating cross flow fan vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02221177 CN2556403Y (en) | 2002-06-10 | 2002-06-10 | Two-way ventilating cross flow fan vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2556403Y true CN2556403Y (en) | 2003-06-18 |
Family
ID=33699329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02221177 Expired - Fee Related CN2556403Y (en) | 2002-06-10 | 2002-06-10 | Two-way ventilating cross flow fan vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2556403Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230479A (en) * | 2011-08-04 | 2011-11-02 | 福建鑫麟机械有限公司 | Tubular fan impeller used for leaf cutter |
| CN105240937A (en) * | 2015-10-12 | 2016-01-13 | 珠海格力电器股份有限公司 | Air-conditioner indoor unit and air conditioner |
| CN106403029A (en) * | 2016-09-05 | 2017-02-15 | 青岛海尔空调器有限总公司 | Wall hanging type air conditioner indoor unit |
| 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 |
-
2002
- 2002-06-10 CN CN 02221177 patent/CN2556403Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230479A (en) * | 2011-08-04 | 2011-11-02 | 福建鑫麟机械有限公司 | Tubular fan impeller used for leaf cutter |
| CN105240937A (en) * | 2015-10-12 | 2016-01-13 | 珠海格力电器股份有限公司 | Air-conditioner indoor unit and air conditioner |
| CN110107957A (en) * | 2015-10-12 | 2019-08-09 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and air conditioner |
| CN106403029A (en) * | 2016-09-05 | 2017-02-15 | 青岛海尔空调器有限总公司 | Wall hanging type air conditioner indoor unit |
| CN106403029B (en) * | 2016-09-05 | 2019-03-01 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
| 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 |
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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 |