CN203962476U - Capable of regulating low-noise fan - Google Patents
Capable of regulating low-noise fan Download PDFInfo
- Publication number
- CN203962476U CN203962476U CN201420194124.3U CN201420194124U CN203962476U CN 203962476 U CN203962476 U CN 203962476U CN 201420194124 U CN201420194124 U CN 201420194124U CN 203962476 U CN203962476 U CN 203962476U
- Authority
- CN
- China
- Prior art keywords
- fan
- flow blower
- noise
- blower casing
- fan blade
- 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
Abstract
The utility model relates to a kind of capable of regulating low-noise fan, there is flow blower casing, in described flow blower casing, be provided with fan blade disc, on fan blade disc, be provided with some fan sheets, the centre of fan blade disc is provided with mounting hole, on the reverse side housing of flow blower casing, be provided with mesh enclosure support, on the front housing of flow blower casing, be provided with venetian blind.The utility model is simple in structure, easy to use, can adjust voluntarily according to body of wall the thickness of blower fan, unique fan blade design improves ventilation, reduces noise, multiple every rain measure, can prevent that rainwater from pouring into indoor, can well prevent entering of insect, reduce production costs simultaneously, safety is attractive in appearance, and practicability is strong.
Description
Technical field
The utility model relates to a kind of capable of regulating low-noise fan.
Background technique
Blower fan has long history, is widely used in the occasions of need to ventilating such as SF6 switch gear room, transformer vault, capacitor chamber, basement.Fan noise produces principle: when blower fan turns round under certain operating mode, the noise of generation, mainly comprises air pertormance noise and mechanicalness noise two large divisions, and wherein air pertormance noise is the main noise of blower fan, and it is divided into rotation noise and eddy current noise.Rotation Noise is by the blade rotating, to hit periodically air particle to cause.The noise that blower fan produces in operation process, it is usually the physical and mental health that affects worker and surrounding resident, environment is around caused to certain pollution, the suitable non-smooth morphology such as pit, convex closure and striped are arranged on the surface, blade face of existing blower fan, can reduce fan noise, but the deficiency of this technology has increased the process complexity that blade is manufactured, but also increased leaf quality, increase the cost of blade, ventilation is less simultaneously, the structure of blower fan cannot be adjusted according to body of wall, causes the waste of manpower and materials.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, a kind of raising ventilation is provided, the capable of regulating low-noise fan reducing costs.
The utility model solves the technological scheme that its technical problem adopts: a kind of capable of regulating low-noise fan, there is flow blower casing, in described flow blower casing, be provided with fan blade disc, on fan blade disc, be provided with some fan sheets, the centre of fan blade disc is provided with mounting hole, on the reverse side housing of flow blower casing, be provided with mesh enclosure support, on the front housing of flow blower casing, be provided with venetian blind.
Further, described venetian blind is divided into active type venetian blind and fixed type blined window.
Further, described fan sheet sense of rotation front-end edge is made irregular contour curve.
Further, on described mesh enclosure support, be fixedly installed filter screen.
Further, the sheet number of described fan sheet is 10-25 sheet.
The beneficial effects of the utility model are: the utility model is simple in structure, easy to use, can adjust voluntarily according to body of wall the thickness of blower fan, unique fan blade design improves ventilation, reduces noise, multiple every rain measure, can prevent that rainwater from pouring into indoor, can well prevent entering of insect, reduce production costs simultaneously, safety is attractive in appearance, and practicability is strong.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of fan blade disc of the present utility model.
1. flow blower casings in figure, 2. fan blade disc, 3. fan sheet, 4. mounting hole, 5. mesh enclosure support, 6. venetian blind.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
A kind of capable of regulating low-noise fan as shown in Figure 1, 2, there is flow blower casing 1, in flow blower casing 1, be provided with fan blade disc 2, be provided with some fan sheets 3 on fan blade disc 2, the centre of fan blade disc 2 is provided with mounting hole 4, on the reverse side housing of flow blower casing 1, be provided with mesh enclosure support 5, on mesh enclosure support 5, be fixedly installed filter screen, prevent that insect toy from entering, improve Security, on the front housing of flow blower casing 1, be provided with venetian blind 6, the thinner increase aesthetic property of design of venetian blind 6;
Current power industry construction development, more and more higher to environmental requirement, fan sheet 3 sense of rotation front-end edges are made irregular contour curve, the structural change of fan sheet 3 impact and the friction mode of blade and fluid, at fan sheet 3 and the convenient generation turbulence of fluid, effectively reduce impact and the friction noise of fan sheet 3; Venetian blind 6 is divided into active type venetian blind and fixed type blined window, the sheet number of fan sheet 3 is 10-25 sheet, fan blade disc 2 is used Low speed electric motor to drive, and increases ventilation, reduces noise, venetian blind 6 could be opened in use, the used time does not close automatically, effectively prevents entering of rainwater, improves Security and aesthetic property, reduce costs simultaneously, guarantee the working life of indoor equipment.
Above-mentioned mode of execution is only explanation technical conceive of the present utility model and feature; its object is to allow person skilled in the art can understand content of the present utility model and be implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (5)
1. a capable of regulating low-noise fan, there is flow blower casing (1), it is characterized in that: in described flow blower casing (1), be provided with fan blade disc (2), on fan blade disc (2), be provided with some fan sheets (3), the centre of fan blade disc (2) is provided with mounting hole (4), on the reverse side housing of flow blower casing (1), be provided with mesh enclosure support (5), on the front housing of flow blower casing (1), be provided with venetian blind (6).
2. capable of regulating low-noise fan according to claim 1, is characterized in that: described venetian blind (6) is divided into active type venetian blind and fixed type blined window.
3. capable of regulating low-noise fan according to claim 1, is characterized in that: described fan sheet (3) sense of rotation front-end edge is made irregular contour curve.
4. capable of regulating low-noise fan according to claim 1, is characterized in that: described mesh enclosure support is fixedly installed filter screen on (5).
5. capable of regulating low-noise fan according to claim 1, is characterized in that: the sheet number of described fan sheet (3) is 10-25 sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194124.3U CN203962476U (en) | 2014-04-21 | 2014-04-21 | Capable of regulating low-noise fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194124.3U CN203962476U (en) | 2014-04-21 | 2014-04-21 | Capable of regulating low-noise fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962476U true CN203962476U (en) | 2014-11-26 |
Family
ID=51923070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420194124.3U Expired - Fee Related CN203962476U (en) | 2014-04-21 | 2014-04-21 | Capable of regulating low-noise fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203962476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235062A (en) * | 2014-08-28 | 2014-12-24 | 孙金福 | Adjustable ventilation fan |
| CN105090069A (en) * | 2014-05-20 | 2015-11-25 | 庄孟文 | Adjustable low-noise draught fan |
-
2014
- 2014-04-21 CN CN201420194124.3U patent/CN203962476U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090069A (en) * | 2014-05-20 | 2015-11-25 | 庄孟文 | Adjustable low-noise draught fan |
| CN104235062A (en) * | 2014-08-28 | 2014-12-24 | 孙金福 | Adjustable ventilation fan |
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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: 20141126 Termination date: 20150421 |
|
| EXPY | Termination of patent right or utility model |