CN203926129U - Centrifugal fan impeller - Google Patents
Centrifugal fan impeller Download PDFInfo
- Publication number
- CN203926129U CN203926129U CN201420282084.8U CN201420282084U CN203926129U CN 203926129 U CN203926129 U CN 203926129U CN 201420282084 U CN201420282084 U CN 201420282084U CN 203926129 U CN203926129 U CN 203926129U
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- CN
- China
- Prior art keywords
- blade
- centrifugal fan
- fan impeller
- sawtooth
- width
- 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 discloses a kind of centrifugal fan impeller, comprise the upper head plate and the lower end sheet that be arranged in parallel, between described upper head plate and lower end sheet, around it, be axially arranged with a plurality of blades, the width of described root of blade is less than the width of end, the edge of described blade is flexuose, and the sawtooth of described root of blade is less than the sawtooth of described blade end; Described blade is laterally provided with at least one rectangular groove along it, and one end of described groove is provided with through hole.The utility model has reduced the suffered resistance of blade, increases the flowing velocity of air-flow, improves the utilization efficiency of blower fan, increases the working life of blower fan.
Description
Technical field
The utility model relates to a kind of draught fan impeller, especially relates to a kind of centrifugal fan impeller, belongs to machinery manufacturing technology field.
Background technique
Centrifugal fan is widely used because it has compared with high blast, and it is mainly comprised of impeller and casing.Impeller is as a key component of blower fan, and whether its structure setting rationally directly affects the overall performance of blower fan.In the course of the work, vane rotary, drives gas flow, thereby realizes the dispatch to air-flow.Impeller when rotated air-flow can produce very large resistance to blade, and this resistance not only can affect the efficiency of blower fan, and can reduce the working life of blade.
Model utility content
For solving existing technical problem, the purpose of this utility model is to provide a kind of draught fan impeller, reduces the suffered resistance of blade, increases the flowing velocity of air-flow, improves the utilization efficiency of blower fan, increases the working life of blower fan.
The technical solution of the utility model is: a kind of centrifugal fan impeller, comprise the upper head plate and the lower end sheet that be arranged in parallel, between described upper head plate and lower end sheet, around it, be axially arranged with a plurality of blades, it is characterized in that, the width of described root of blade is less than the width of end, the edge of described blade is flexuose, and the sawtooth of described root of blade is less than the sawtooth of described blade end.
Aforesaid centrifugal fan impeller, is characterized in that, described blade is laterally provided with at least one rectangular groove along it, one end of described groove is provided with through hole, and air-flow flows along groove, passes through hole while arriving through hole, further reduce the resistance to blade, increased the working life of blade.
Aforesaid centrifugal fan impeller, is characterized in that, described rectangular groove is parallel to each other.
Aforesaid centrifugal fan impeller, is characterized in that, the cross section of described rectangular groove is semicircle, rectangle or triangle.
Aforesaid centrifugal fan impeller, is characterized in that, described blade is spirality, reduces blade resistance, reduces noise.
Aforesaid centrifugal fan impeller, is characterized in that, described adjacent two interlobate distances equate.
The beneficial effect that the utility model reaches: the width of root of blade is less than the width of end, and the sawtooth of root of blade is less than the sawtooth of blade end, reduce the suffered resistance of blade, air-flow velocity is strengthened gradually from blade end to root, improve the utilization efficiency of blower fan, reduced noise simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, a kind of centrifugal fan impeller, comprises the upper head plate 1 and the lower end sheet 2 that be arranged in parallel, between described upper head plate 1 and lower end sheet 2, around it, is axially arranged with a plurality of blades 3, and the distance that described adjacent two blade is 3 equates.The width of described blade 3 roots is less than the width of end, and the edge of described blade 3 is sawtooth 4 shapes, and the sawtooth 4 of described blade 3 roots is less than the sawtooth 4 of described blade 3 ends.This structure can reduce the suffered resistance of blade 3, and air-flow velocity is strengthened to root gradually from blade 3 ends, has improved the utilization efficiency of blower fan, has reduced noise simultaneously.
Further, described blade 3 is laterally provided with at least one rectangular groove 5 along it, and one end of described groove 5 is provided with through hole 6, and air-flow flows along groove 5, while arriving through hole 6, through through hole 6, has further reduced the resistance to blade 3, has increased the working life of blade 3.
Further, described rectangular groove 5 is parallel to each other, and the cross section of described rectangular groove 5 is semicircle, rectangle or triangle.
Further, described blade 3 is spirality, has reduced blade 3 resistances, has also reduced noise simultaneously.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection domain of the present utility model.
Claims (6)
1. a centrifugal fan impeller, comprise the upper head plate and the lower end sheet that be arranged in parallel, between described upper head plate and lower end sheet, around it, be axially arranged with a plurality of blades, it is characterized in that, the width of described root of blade is less than the width of end, the edge of described blade is flexuose, and the sawtooth of described root of blade is less than the sawtooth of described blade end.
2. centrifugal fan impeller according to claim 1, is characterized in that, described blade is laterally provided with at least one rectangular groove along it, and one end of described groove is provided with through hole.
3. centrifugal fan impeller according to claim 2, is characterized in that, described rectangular groove is parallel to each other.
4. centrifugal fan impeller according to claim 2, is characterized in that, the cross section of described rectangular groove is semicircle, rectangle or triangle.
5. according to arbitrary described centrifugal fan impeller in claim 1-4, it is characterized in that, described blade is spirality.
6. centrifugal fan impeller according to claim 5, is characterized in that, described adjacent two interlobate distances equate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282084.8U CN203926129U (en) | 2014-05-30 | 2014-05-30 | Centrifugal fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282084.8U CN203926129U (en) | 2014-05-30 | 2014-05-30 | Centrifugal fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926129U true CN203926129U (en) | 2014-11-05 |
Family
ID=51821948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420282084.8U Expired - Fee Related CN203926129U (en) | 2014-05-30 | 2014-05-30 | Centrifugal fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033420A (en) * | 2014-05-30 | 2014-09-10 | 苏州市金翔钛设备有限公司 | Centrifugal fan impeller |
-
2014
- 2014-05-30 CN CN201420282084.8U patent/CN203926129U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033420A (en) * | 2014-05-30 | 2014-09-10 | 苏州市金翔钛设备有限公司 | Centrifugal fan impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |