CN202833327U - Wind concentrating draught fan - Google Patents
Wind concentrating draught fan Download PDFInfo
- Publication number
- CN202833327U CN202833327U CN 201220383310 CN201220383310U CN202833327U CN 202833327 U CN202833327 U CN 202833327U CN 201220383310 CN201220383310 CN 201220383310 CN 201220383310 U CN201220383310 U CN 201220383310U CN 202833327 U CN202833327 U CN 202833327U
- Authority
- CN
- China
- Prior art keywords
- ring
- blower fan
- arc
- shaped ring
- air inlet
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a wind concentrating draught fan, which comprises a draught fan, wherein one end of the draught fan is an air inlet, and the other end is an air outlet; a wind concentrating ring is arranged on the air inlet; the wind concentrating ring comprises a cone-shaped ring and an arc-shaped ring; and the big opening of the cone-shaped ring faces the air outlet, and one end of the arc-shaped ring is connected with one end of the smaller opening of the cone-shaped ring. While the ring surface of the arc-shaped ring is in an arc shape concaved inwards in the radical direction. According to the utility model, the cone-shaped ring arranged on the air inlet can effectively concentrate the airflow at the air inlet end, so as to reduce the wind pressure loss effectively. While the cone shape can effectively reduce the impact of the airflow on the side of the air inlet, weaken the vibration in the air inlet, lower the noise, improve the performance of the whole draught fan, and prolong the service life of the fan.
Description
Technical field
The utility model relates to a kind of blower fan, particularly a kind of wind gathering type blower fan that can reduce air loss.
Background technique
Existing blower fan, its Blower Housing is circular tube shaped, that is to say, the anchor ring of annulus is along axial straight flange form.When blower fan in work time, high velocity air enters blower fan inside from intake grill, high velocity air easily spills from intake grill, the atmospheric pressure lost at intake grill place is larger, affects the interactive efficiency of air-flow.Secondly, when wind speed was higher, the anchor ring of straight flange easily caused fierce vibration and produces higher noise under high velocity air impacts, and then affected the working life of blower fan, and may bring the use safety problem.
The model utility content
For the deficiencies in the prior art, the utility model provides a kind of rational in infrastructure, wind gathering type blower fan of reducing air loss.
The utility model is by following technical solution:
A kind of wind gathering type blower fan comprises blower fan, and this blower fan one end is intake grill, and the other end is exhaust outlet, is provided with the wind gathering ring at intake grill, and this wind gathering ring comprises tapered collar, and the tapered collar big opening end is towards the exhaust outlet setting.
Further, described wind gathering ring also comprises the arc ring, and the end that an end of this arc ring and tapered collar opening are less is connected.
Further, the anchor ring of described tapered collar is taper.
Further, the anchor ring of described arc ring is radially cambered inwards arc shape.
The utility model is by technique scheme, and its beneficial effect is: the intake grill place is provided with tapered collar, and the osculum end on this tapered collar can effectively be assembled the air-flow of air intake, so just effectively reduces air loss.Simultaneously, this tapered collar has effectively reduced the impact of air-flow to the air inlet side, weakens the vibration at intake grill place, reduces noise, has improved the performance of whole blower fan, prolongs the working life of blower fan.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model wind gathering structure of rings schematic diagram.
Among the figure: 1, tapered collar, 2, the arc ring, 3, blower fan, 4, intake grill, 5, exhaust outlet.
Embodiment
Now by the drawings and specific embodiments the utility model is described in further detail:
Embodiment, as depicted in figs. 1 and 2, a kind of wind gathering type blower fan comprises blower fan 3, and these blower fan 3 one ends are intake grill 4, and the other end is exhaust outlet 5, is provided with the wind gathering ring at intake grill, and this wind gathering ring comprises tapered collar 1, tapered collar 1 big opening end arranges towards exhaust outlet 5.Described wind gathering ring also comprises arc ring 2, and the end that an end of this arc ring 2 and tapered collar 1 opening are less is connected.The anchor ring of described tapered collar 1 is taper.The anchor ring of described arc ring 2 is radially cambered inwards arc shape.
The utility model can effectively be assembled the air-flow of blower fan 3 intake grills 4 by tapered collar 1 osculum that is arranged at intake grill 4 places, enough like this air loss that effectively reduces.Simultaneously, this tapered collar 1 can effectively reduce air-flow to the impact of blower fan 3 intake grills 4 sides, weakens the vibration at intake grill 4 places, reduces noise, has improved the performance of whole blower fan 3, prolongs the working life of blower fan 3.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (4)
1. a wind gathering type blower fan comprises blower fan, and this blower fan one end is intake grill, and the other end is exhaust outlet, it is characterized in that: be provided with the wind gathering ring at intake grill, this wind gathering ring comprises tapered collar, and the tapered collar big opening end is towards the exhaust outlet setting.
2. a kind of wind gathering type blower fan as claimed in claim 1, it is characterized in that: described wind gathering ring also comprises the arc ring, the end that an end of this arc ring and tapered collar opening are less is connected.
3. a kind of wind gathering type blower fan as claimed in claim 1 or 2, it is characterized in that: the anchor ring of described tapered collar is taper.
4. a kind of wind gathering type blower fan as claimed in claim 2, it is characterized in that: the anchor ring of described arc ring is radially cambered inwards arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383310 CN202833327U (en) | 2012-08-04 | 2012-08-04 | Wind concentrating draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383310 CN202833327U (en) | 2012-08-04 | 2012-08-04 | Wind concentrating draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833327U true CN202833327U (en) | 2013-03-27 |
Family
ID=47945044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220383310 Expired - Fee Related CN202833327U (en) | 2012-08-04 | 2012-08-04 | Wind concentrating draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833327U (en) |
-
2012
- 2012-08-04 CN CN 201220383310 patent/CN202833327U/en not_active Expired - Fee Related
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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: 20130327 Termination date: 20150804 |
|
| EXPY | Termination of patent right or utility model |