CN202789730U - Low noise fan device capable of hiding blade - Google Patents
Low noise fan device capable of hiding blade Download PDFInfo
- Publication number
- CN202789730U CN202789730U CN 201220241407 CN201220241407U CN202789730U CN 202789730 U CN202789730 U CN 202789730U CN 201220241407 CN201220241407 CN 201220241407 CN 201220241407 U CN201220241407 U CN 201220241407U CN 202789730 U CN202789730 U CN 202789730U
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- Prior art keywords
- blade
- motor
- low noise
- outer shade
- hiding
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- Expired - Fee Related
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Abstract
The utility model discloses a low noise fan device capable of hiding a blade. The low noise fan device capable of hiding the blade comprises an outer shade, a front cover, a motor and a blade arranged on a rotating shaft of the motor. The motor is fixed on the inner side of the front cover. The outer shade is coated on back side of the blade. An air inlet in a grilling shape is arranged in a cover wall, towards the blade, of the outer shade. The edge portion of the outer shade and that of the front cover are arranged to be ring nozzles which gradually bend and extend forward and are encircled toward the front. According to the low noise fan device capable of hiding the blade, a motor blade component is arranged in a cavity formed encircled by the front cover and the outer shade, and air is sucked inside by the air inlet of the outer shade and sprayed frontward at high speed through the ring nozzles encircled by the front cover and the outer shade. A channel passed by the air is short and the shape of the channel is smooth and flat, and therefore wind resistance is reduced, energy consumption is reduced, and noise is low.
Description
Technical field
The utility model relates to the fan technical field, relates in particular to a kind of fan of hiding flabellum.
Background technique
Traditional fan all is to rotate and produce wind by the motor driving flabellum, owing to its flabellum exposes, is perhaps covered by the grid cover, and therefore, there is certain potential safety hazard in this fan, can hurt human body.
Existing a kind of without blade fan, be to be rotated by the motor driving turbine blade, air is pumped in the annular wind groove, blow out at a high speed from the ring nozzle of annular wind groove, and the air that drives periphery is blown out by the wind-tunnel that annular wind groove surrounds.The air quantity that this kind fan blows out is effective amplification of ring nozzle air quantity, the high working efficiency of fan.And turbine blade is to be hidden in the fan base, is to see it is a kind of without blade fan in shape, stopped the existing potential safety hazard of conventional fan.But, this fan be with air by the pedestal suction, be blown into again in the annular wind groove because air flow passage complex-shaped changeable, windage is large, can cause energy loss, produces larger noise.And to make ring nozzle form high velocity air, and need in annular wind groove, form higher air pressure, this just need to use high-speed electric expreess locomotive and drive turbine blade, has virtually increased the noise that high-speed electric expreess locomotive brings.
The model utility content
The technical problems to be solved in the utility model provide that a kind of windage is little, noise is low without blade fan.
For solving the problems of the technologies described above the technological scheme that adopts: a kind of fan assembly of hiding blade of low noise, include outer cover, protecgulum, motor and be installed in impeller on the machine shaft, it is characterized in that: described motor is fixed on the inboard of protecgulum, described outer cover covers on the rear side of impeller, outer cover is facing to offering grid-like wind inlet on the cover wall of impeller, and the limit section of outer cover and the limit section of protecgulum are set as toward front end is crooked gradually extends and be encircled into ring nozzle towards the place ahead.
On the basis of the above, described protecgulum is set as the double-layer cover plate that is formed with separate space, and described motor is fixed on the inner deck.
The beneficial effect that adopts the utility model to bring: the utility model is installed in the electric motor with vane wheel assembly in the cavity volume that is surrounded by protecgulum and outer cover, and air is by the wind inlet suction of outer cover, from the at a high speed forward ejection of ring nozzle that is surrounded by protecgulum and outer cover.Wherein the passage distance of air stream warp is short, and channel shape is smooth-going, has reduced windage, reduce energy loss, and noise is low.
Description of drawings
Fig. 1 is cross-sectional view of the present utility model.
Embodiment
As shown in Figure 1, a kind of fan assembly of hiding blade of low noise includes outer cover 1, protecgulum 2, motor 3 and is installed in impeller 4 in motor 3 rotating shafts.Described motor 3 is fixed on the inboard of protecgulum, described outer cover 1 covers on the rear side of impeller 4, outer cover 1 offers grid-like wind inlet 1.1 facing on the cover wall of impeller 4, and the limit section 1.2 of outer cover 1 and the limit section 2.1 of protecgulum 2 are set as toward front end is crooked gradually extends and be encircled into ring nozzle 5 towards the place ahead.
Wherein, protecgulum 2 is set as the double-layer cover plate that is formed with separate space, and described motor 3 is fixed on the inner deck 2.2.Balustrade deching 2.3 can be kept the smooth succinct of fan assembly surface, and inner deck 2.2 can make the crooked gradual change of air passageways, reduces windage.The separate space that is formed by balustrade deching 2.3 and inner deck 2.2 more can improve the fan assembly sound insulation value.
Claims (2)
1. the fan assembly of the hiding blade of a low noise, include outer cover, protecgulum, motor and be installed in impeller on the machine shaft, it is characterized in that: described motor is fixed on the inboard of protecgulum, described outer cover covers on the rear side of impeller, outer cover is facing to offering grid-like wind inlet on the cover wall of impeller, and the limit section of outer cover and the limit section of protecgulum are set as toward front end is crooked gradually extends and be encircled into ring nozzle towards the place ahead.
2. the fan assembly of the hiding blade of low noise according to claim 1, it is characterized in that: described protecgulum is set as the double-layer cover plate that is formed with separate space, and described motor is fixed on the inner deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241407 CN202789730U (en) | 2012-05-25 | 2012-05-25 | Low noise fan device capable of hiding blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241407 CN202789730U (en) | 2012-05-25 | 2012-05-25 | Low noise fan device capable of hiding blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789730U true CN202789730U (en) | 2013-03-13 |
Family
ID=47816998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220241407 Expired - Fee Related CN202789730U (en) | 2012-05-25 | 2012-05-25 | Low noise fan device capable of hiding blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789730U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421212A (en) * | 2013-08-24 | 2015-03-18 | 任文华 | Air outlet cover for fan and fan |
| CN104863870A (en) * | 2014-02-28 | 2015-08-26 | 广东美的环境电器制造有限公司 | Fan |
| CN104879307A (en) * | 2014-04-30 | 2015-09-02 | 广东美的环境电器制造有限公司 | Fan |
-
2012
- 2012-05-25 CN CN 201220241407 patent/CN202789730U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421212A (en) * | 2013-08-24 | 2015-03-18 | 任文华 | Air outlet cover for fan and fan |
| CN104421212B (en) * | 2013-08-24 | 2016-06-29 | 任文华 | Outlet housing and fan thereof for fan |
| CN104863870A (en) * | 2014-02-28 | 2015-08-26 | 广东美的环境电器制造有限公司 | Fan |
| CN104863870B (en) * | 2014-02-28 | 2017-07-28 | 广东美的环境电器制造有限公司 | Fan |
| CN104879307A (en) * | 2014-04-30 | 2015-09-02 | 广东美的环境电器制造有限公司 | 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20200525 |