CN204921483U - Pressure boost cover - Google Patents
Pressure boost cover Download PDFInfo
- Publication number
- CN204921483U CN204921483U CN201520525190.9U CN201520525190U CN204921483U CN 204921483 U CN204921483 U CN 204921483U CN 201520525190 U CN201520525190 U CN 201520525190U CN 204921483 U CN204921483 U CN 204921483U
- Authority
- CN
- China
- Prior art keywords
- bluff body
- housing
- fan
- height
- runner
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a pressure boost cover sets up in the income wind gap of fan, and it contains the casing, and this casing has the internal surface, should have the runner by interior surface surround, and this runner has air intake and air outlet, and wherein the sectional area of this runner moves towards this air outlet flaring by this air intake, and this pressure boost cover is used for improving the air current static pressure through this fan, and then promotes the performance performance of this fan.
Description
Technical field
The utility model has about a kind of supercharging cover, particularly about a kind of supercharging cover of axial fan.
Background technique
Fan can divide into centrifugal cutter and axial fan simply according to its structure and gas flow, wherein the characteristic of centrifugal cutter is that air quantity is little, blast is high, be applicable to being used in the environment of high windage, the characteristic of axial fan is then that air quantity is large, blast is little, is applicable to being used in the environment needing a large amount of ventilation.Wherein axial fan have that running speed is fast, the simple light and handy and advantage that running efficiency is high of structure, and be widely used in various electronic equipment and dispel the heat.Refer to Fig. 6, for the flow-static pressure comparison diagram of axial fan, the curve " not being provided with the fan of supercharging cover " in figure is the performance of general existing axial fan, can see in curve having obvious stall zone (flow about 30CFM), when axial fan operates in this region, the performance of fan can obviously be deteriorated, and cause its radiating effect to decline, therefore, how to improve the problem that axial fan glides in stall zone performance, for industry endeavours the direction of research and development.
Model utility content
In order to solve the problems of the technologies described above, main purpose of the present utility model is sectional area by the runner of supercharging cover by intake grill towards exhaust outlet flaring, to increase the static pressure of fan, and can improve the performance of the working area of fan.
A kind of supercharging cover of the present utility model is for being arranged at the wind inlet of fan, this supercharging cover comprises housing, and this housing has internal surface, and this internal surface is around there being runner, this runner has intake grill and exhaust outlet, wherein the sectional area of this runner by this intake grill towards this exhaust outlet flaring.
As optimal technical scheme, this housing has bottom surface, and this exhaust outlet of this runner is positioned at this bottom surface of this housing, has the first angle between this bottom surface of this housing and this internal surface, and this first angle is be not less than the acute angle of 30 degree.
As optimal technical scheme, above-mentioned supercharging cover includes bluff body and multiple stator blade, and this bluff body is arranged in this runner, and respectively this stator blade has first end and the second end, respectively this first end of this stator blade connects this bluff body, and respectively this second end of this stator blade connects this internal surface of this housing.
As optimal technical scheme, this bluff body has side, this bluff body between this side and bottom surface of this housing, there is the second angle, this second angle is be not less than the acute angle of 30 degree.
As optimal technical scheme, this bluff body has the first height, and this housing has thickness, this first this thickness being highly less than this housing of this bluff body.
As optimal technical scheme, this bluff body has the first height, and this housing has thickness, and the ratio of this first height of this bluff body and this thickness of this housing is between 1:5 to 4:5.
As optimal technical scheme, this bluff body has the first height, and respectively this stator blade has the second height, and the ratio between this second height of this first height of this bluff body and each this stator blade is between 5:1 to 5:4.
Further preferably, respectively this stator blade has the second height, and the ratio between this second height of this first height of this bluff body and each this stator blade is between 5:1 to 5:4.
As optimal technical scheme, this bluff body has bluff body bottom surface, the bottom surface coplanar of this bluff body bottom surface and this housing.
Further preferably, respectively this stator blade has connection bottom surface, this bottom surface coplanar of this connection bottom surface and this housing.
As optimal technical scheme, the wheel hub of this this fan of bluff body cover cap.
As optimal technical scheme, the size of this exhaust outlet of this runner is not more than the size of this wind inlet of this fan.
The utility model arranges this supercharging cover to increase its air-flow static pressure by this wind inlet in this fan, can promote the service behaviour of this fan, and then increase the working efficiency of this fan.
Accompanying drawing explanation
Fig. 1: according to the first embodiment of the present utility model, the perspective top view of supercharging cover.
Fig. 2: according to the first embodiment of the present utility model, view under the solid of this supercharging cover.
Fig. 3: according to the first embodiment of the present utility model, the side sectional view of this supercharging cover.
Fig. 4: according to the first embodiment of the present utility model, this supercharging cover is installed on the side sectional view of fan.
Fig. 5: according to the second embodiment of the present utility model, supercharging cover is installed on the side sectional view of fan.
Fig. 6: the flow-static pressure comparison diagram installing and be not provided with this supercharging cover of the first embodiment of the present utility model.
Description of reference numerals:
100 supercharging covers; 110 housings;
111 internal surfaces; 112 bottom surfaces;
120 bluff bodies; 121 sides;
122 bluff body bottom surfaces; 130 stator blades;
131 first ends; 132 second ends;
133 connect bottom surface; 200 fans;
210 wind inlets; 220 wheel hubs;
230 exhaust ports; P runner;
P1 intake grill; P2 exhaust outlet;
θ 1 first angle; θ 2 second angle;
H1 first height; H2 second height;
T thickness.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
Refer to Fig. 1, Fig. 2 and Fig. 3, for one first embodiment of the present utility model, a kind of stereogram of supercharging cover 100 and sectional view, this supercharging cover 100 comprises housing 110, bluff body 120 and multiple stator blade 130, this housing 110 has internal surface 111 and bottom surface 112, refer to Fig. 3, this internal surface 111 of this housing 110 is around there being runner P, this runner P supplied gas flows through, this runner P has intake grill P1 and exhaust outlet P2, this exhaust outlet P2 of this runner P is positioned at this bottom surface 112 of this housing 110, gas is flowed into by this intake grill P1, and flowed out by this exhaust outlet P2, wherein the sectional area of this runner P by this intake grill P1 towards this exhaust outlet P2 flaring, static pressure is increased in the process that gas can be made to flow in this runner P, this housing 110 between this bottom surface 112 and this internal surface 111, there is the first angle theta 1, in the present embodiment, the acute angle of this first angle theta 1 for being not less than 30 degree.
Refer to Fig. 1, Fig. 2 and Fig. 3, respectively this stator blade 130 has first end 131 and the second end 132, respectively this first end 131 of this stator blade 130 connects this bluff body 120, respectively this second end 132 of this stator blade 130 connects this internal surface 111 of this housing 110, those stator blades 130 are in order to the flow direction of correcting inflow gas, the air-flow velocity of inflow can being increased, to make up this runner P for improving air-flow static pressure, reducing this intake grill P1 and reduce enter air quantity.This bluff body 120 is arranged in this runner P by the fixing of those stator blades 130, this bluff body 120 enters fan more swimmingly in order to air-guiding, wherein this bluff body 120 has side 121, between this side 121 of this bluff body 120 and this bottom surface 112 of this housing 110, there is the second angle theta 2, in the present embodiment, the acute angle of this second angle theta 2 for being not less than 30 degree.
Refer to Fig. 3, this housing 110 of this supercharging cover 100 has thickness T, this bluff body 120 has the first height H 1, respectively this stator blade 130 has the second height H 2, wherein this first height H 1 of this bluff body 120 is less than this thickness T of this housing 110, respectively this second height H 2 of this stator blade 130 is less than this first height H 1 of this bluff body 120, preferably, ratio between this first height H 1 of this bluff body 120 and this thickness T of this housing 110 is between 1:5 to 4:5, ratio between this second height H 2 of this first height H 1 of this bluff body 120 and respectively this stator blade 130 is between 5:1 to 5:4, the air-flow efficiency of rectification of this runner P can be made to reach best.
Refer to Fig. 2 and Fig. 3, this bluff body 120 has bluff body bottom surface 122, respectively this stator blade 130 has and connects bottom surface 133, in the present embodiment, this connection bottom surface 133 of this bluff body bottom surface 122 of this bluff body 120 and respectively this stator blade 130 all with this bottom surface 112 coplanar of this housing 110.
Refer to Fig. 4, for the first embodiment of the present utility model and fan 200 in conjunction with schematic diagram, this fan 200 has wind inlet 210, wheel hub 220 and exhaust port 230, this fan 200 is axial fan, this supercharging cover 100 is arranged at this wind inlet 210 of this fan 200, when this fan 200 operates, gas is flowed into by this intake grill P1 of this runner P, and via after this exhaust outlet P2 of this runner P and this wind inlet 210 of this fan 200, flowed out by this exhaust port 230 of this fan 200, make this fan 200 can improve its air-flow static pressure by this supercharging cover 100, preferably, this wheel hub 220 of this this fan 200 of bluff body 120 cover cap of this supercharging cover 100, this wind inlet 210 of this fan 200 can be entered more swimmingly by the water conservancy diversion of this bluff body 120 after flowing into this runner P to make gas, preferably, the size of this exhaust outlet P2 of this runner P is not more than the size of this wind inlet 210 of this fan 200, make air-flow fully can flow into this wind inlet 210 of this fan 200 after the water conservancy diversion of this supercharging cover 100.Refer to Fig. 6, after this axial fan of prior art is provided with this supercharging cover 100 of the present utility model, can sees that the air-flow static pressure in former stall zone significantly improves, significantly can promote the service behaviour of this fan 200, and then increase the working efficiency of this fan 200.
Refer to Fig. 5, for the schematic diagram that one second embodiment of the present utility model is combined with this fan 200, the difference of this second embodiment and this first embodiment is that this second embodiment does not have this bluff body 120 and those stator blades 130, in the same manner, when this fan 200 operates, gas is flowed into by this intake grill P1 of this runner P, and via after this exhaust outlet P2 of this runner P and this wind inlet 210 of this fan 200, flowed out by this exhaust port 230 of this fan 200, improved the air-flow static pressure of this fan 200 towards this exhaust outlet P2 flaring by this intake grill P1 by the sectional area of this runner P.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection domain of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (12)
1. a supercharging cover, is arranged at the wind inlet of fan, and this supercharging cover comprises housing, this housing has internal surface, and this internal surface is around there being runner, and this runner has intake grill and exhaust outlet, it is characterized in that, the sectional area of this runner by this intake grill towards this exhaust outlet flaring.
2. supercharging cover as claimed in claim 1, it is characterized in that, this housing has bottom surface, and this exhaust outlet of this runner is positioned at this bottom surface of this housing, has the first angle between this bottom surface of this housing and this internal surface, and this first angle is be not less than the acute angle of 30 degree.
3. supercharging cover as claimed in claim 1, it is characterized in that, it includes bluff body and multiple stator blade, this bluff body is arranged in this runner, respectively this stator blade has first end and the second end, and respectively this first end of this stator blade connects this bluff body, and respectively this second end of this stator blade connects this internal surface of this housing.
4. supercharging cover as claimed in claim 3, it is characterized in that, this bluff body has side, this bluff body between this side and bottom surface of this housing, there is the second angle, this second angle is be not less than the acute angle of 30 degree.
5. supercharging cover as claimed in claim 3, is characterized in that, this bluff body has the first height, and this housing has thickness, this first this thickness being highly less than this housing of this bluff body.
6. the supercharging cover as described in claim 3 or 4, is characterized in that, this bluff body has the first height, and this housing has thickness, and the ratio of this first height of this bluff body and this thickness of this housing is between 1:5 to 4:5.
7. the supercharging cover as described in claim 3 or 4, is characterized in that, this bluff body has the first height, and respectively this stator blade has the second height, and the ratio between this second height of this first height of this bluff body and each this stator blade is between 5:1 to 5:4.
8. supercharging cover as claimed in claim 6, is characterized in that, respectively this stator blade has the second height, and the ratio between this second height of this first height of this bluff body and respectively this stator blade is between 5:1 to 5:4.
9. supercharging cover as claimed in claim 3, it is characterized in that, this bluff body has bluff body bottom surface, the bottom surface coplanar of this bluff body bottom surface and this housing.
10. supercharging cover as claimed in claim 9, it is characterized in that, respectively this stator blade has connection bottom surface, this bottom surface coplanar of this connection bottom surface and this housing.
11. supercharging covers as claimed in claim 3, is characterized in that, the wheel hub of this this fan of bluff body cover cap.
12. supercharging covers as claimed in claim 1, it is characterized in that, the size of this exhaust outlet of this runner is not more than the size of this wind inlet of this fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525190.9U CN204921483U (en) | 2015-07-20 | 2015-07-20 | Pressure boost cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525190.9U CN204921483U (en) | 2015-07-20 | 2015-07-20 | Pressure boost cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921483U true CN204921483U (en) | 2015-12-30 |
Family
ID=54970616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520525190.9U Expired - Fee Related CN204921483U (en) | 2015-07-20 | 2015-07-20 | Pressure boost cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921483U (en) |
-
2015
- 2015-07-20 CN CN201520525190.9U patent/CN204921483U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203335470U (en) | High-efficiency centrifugal fan without volute | |
| CN103807201A (en) | Combined suction layout method for controlling compressor stator corner separation | |
| CN203604225U (en) | Induced draft fan structure and central air conditioning cooling system with induced draft fan structure | |
| CN203384065U (en) | Multi-vane fan | |
| CN101446302B (en) | Fan having fan frame with stationary guide blade | |
| CN204610372U (en) | A kind of centrifugal impeller of blade trailing edge band winglet | |
| CN204921483U (en) | Pressure boost cover | |
| CN111927823A (en) | Centrifugal impeller and high-specific-speed energy-saving centrifugal dust removal fan | |
| CN204458427U (en) | Blower fan and range hood | |
| CN202360458U (en) | Multi-wing centrifugal fan with reinforced air inlet function | |
| CN206830489U (en) | A kind of centrifugal blower of the double air-out of double air intakes | |
| CN203453115U (en) | Backward centrifugal wind wheel | |
| CN204827981U (en) | High -efficient mixed flow fan | |
| CN204821758U (en) | Guide plate structure and car under preceding guarantor | |
| CN205401175U (en) | Fan and adopt range hood of this fan | |
| CN205207221U (en) | Fan | |
| CN103291661A (en) | Noise-reducing blower inlet windproof ring device of vehicle air conditioner | |
| CN210068297U (en) | Diversion cooling system composed of fan and diversion structure | |
| CN204126958U (en) | With the small axial flow fan of splitterr vanes | |
| CN202381392U (en) | Fixed impeller with improved air quantity and motor thereof | |
| CN206449014U (en) | Axial-flow leaf and blower fan, air-conditioner outdoor unit with it | |
| CN202431613U (en) | Inducer recirculation device of turbocharger | |
| CN206092469U (en) | Two -sided air inlet scavenger fan | |
| CN205747270U (en) | A kind of vertical air conditioner fan of noise reduction modified form | |
| CN104613010A (en) | Efficient wide-flow compressor |
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: 20151230 Termination date: 20170720 |