CN201679549U - Cooling impeller - Google Patents
Cooling impeller Download PDFInfo
- Publication number
- CN201679549U CN201679549U CN2010202034122U CN201020203412U CN201679549U CN 201679549 U CN201679549 U CN 201679549U CN 2010202034122 U CN2010202034122 U CN 2010202034122U CN 201020203412 U CN201020203412 U CN 201020203412U CN 201679549 U CN201679549 U CN 201679549U
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- Prior art keywords
- impeller
- air
- rim
- airflow
- wheel rim
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- Expired - Fee Related
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Abstract
The utility model discloses a cooling impeller which comprises a blade, a rim and an air protecting ring; and the structural essentials are as follows: a convex ring is arranged on an inward end of the rim and is vertical to the rim. The three cross sections of the convex ring, the rim and the air protection ring form a hook shape. Compared with the prior art, the cooling impeller has the advantages and beneficial effects that the convex ring of the impeller can block partial air backflow between the impeller and an air hood, thereby reducing the airflow leakage and losses between the impeller and the air hood as well as the impact of leaked airflow on inlet airflow, improving the flowing status of the inlet airflow of the impeller and the operation performance of the impeller, and reducing the pneumatic noise of the impeller.
Description
Technical field
The utility model relates to axial-flow blower, is used in particular in the car engine cooling system, specifically the heat-dissipating impeller structure of cooling automobile motor.
Background technique
Along with the continuous progress of industrial technology, the axial-flow blower technology is also along with development.For example, the shape that is used for the heat-dissipating impeller of motor car engine develops into twisted blade by prismatic blade, and what occur on the existing market bends, plunders blade, and the radiating effect of impeller is also progressively improving.But the gas backflow leakage problem on leaf top between impeller and the fan housing is the focus that the sector scientific and technical personnel pay close attention to always.Show that through relevant experimental study the radial clearance of impeller and fan housing and the ratio of length of blade are increased at 1.65% o'clock by 0.97%, the impeller air quantity descends 6.67%, and total pressure efficiency reduces by 4%, and the noise of impeller also increases thereupon.Many for this reason experts have proposed solution impeller leaf top and have leaked various schemes, and the heat-dissipating impeller structure has been done to update, and what have adds wheel rim at impeller leaf top, and solar or lunar halo is protected in adding at the impeller outer shroud of having.All these purposes are the return air leakage loss that reduces between impeller and fan housing, and the effective air output of heat radiation of heat-dissipating impeller is increased, and the cooling automobile motor improves the engine radiating effect better.Therefore, people are for exploring the constantly effort of better effect.
Summary of the invention
At the defective that prior art exists, the technical problems to be solved in the utility model provides a kind of heat-dissipating impeller, and this impeller can increase the efficiently radiates heat air output, reduces flow leakage between impeller and the fan housing, improves the radiating effect of impeller to motor.
For solving the problems of the technologies described above, the utility model is to realize that by following technological scheme a kind of heat-dissipating impeller comprises blade, wheel rim, protects solar or lunar halo, and its structure outline is: be provided with an inside protruding circle in the wheel rim end, protruding circle and wheel rim are perpendicular.Protruding circle is used to stop that the gas between impeller and fan housing refluxes.
The utility model has been set up protruding coil structures design owing to improved impeller shape, and compared with prior art, its advantage and beneficial effect are:
1. the protruding circle of impeller can stop that the part gas between impeller and fan housing refluxes, and reduces the flow leakage loss between impeller and fan housing, has improved the total pressure efficiency of impeller;
2. the protruding circle of impeller can reduce the disturbing influence of leakage flow to the air intake air-flow, has improved the flow condition of impeller air intake air-flow;
3. promote the impeller operation performance, reduced the aerodynamic noise of impeller.
Description of drawings
Below with reference to drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
Reference character
Embodiment
With the heat-dissipating impeller that is used for motor car engine is present embodiment:
As shown in Figure 1, impeller 2 comprises blade 3, wheel hub 4, wheel rim 5.Impeller 2 places in fan housing 1 hole and in fan housing 1 hole and rotates, and keeps radial clearance between impeller 2 and the fan housing 1.This gap can produce the gas backflow leakage problem on leaf top between impeller 2 and the fan housing 1.
As shown in Figure 2, impeller 2 also comprises and protects solar or lunar halo 6, increases an inside protruding circle 7 in wheel rim 5 ends, and protruding circle 7 is perpendicular with wheel rim 5.Protruding circle 7 with wheel rim 5, protect shape that is hook of 6 three section constitutions of solar or lunar halo, protruding circle 7 is used to stop the give vent to anger backflow opposite with impeller 2 air inlets.
As depicted in figs. 1 and 2, when impeller 2 rotation works, air-flow is flowed into to the motor direction by impeller 2, is used for heat radiation and cooling automobile motor.Rotate in the intake process at impeller 2, the radial clearance place between impeller 2 and the fan housing 1 exists throughput and leaks, and the part air-flow refluxes from gap location.The effect of protruding circle 7 is when reflow stream during to protruding circle 7, is blocked by protruding circle 7, makes the part gas between impeller 2 and the fan housing 1 reflux and can't flow out.Like this, can reduce the radial clearance place airflow reflux between impeller 2 and the fan housing 1, reduce the flow leakage amount, improve the air inlet effective discharge.
Obviously, those skilled in the art can carry out various changes and distortion to the utility model, and does not break away from the utility model spirit and scope.Like this, if these modifications and distortion belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and is out of shape interior.
Claims (2)
1. a heat-dissipating impeller comprises blade, wheel rim, protects solar or lunar halo, it is characterized in that:
A protruding circle, it is interior to the end to be located at wheel rim, perpendicular with wheel rim.
2. heat-dissipating impeller according to claim 1 is characterized in that: described protruding circle and wheel rim, protect solar or lunar halo three cross sections, constitute a shape that is hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202034122U CN201679549U (en) | 2010-05-24 | 2010-05-24 | Cooling impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202034122U CN201679549U (en) | 2010-05-24 | 2010-05-24 | Cooling impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679549U true CN201679549U (en) | 2010-12-22 |
Family
ID=43344596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202034122U Expired - Fee Related CN201679549U (en) | 2010-05-24 | 2010-05-24 | Cooling impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111464045A (en) * | 2020-05-11 | 2020-07-28 | 甘肃上航电力运维有限公司 | Tree-shaped heat dissipation device for sealed photovoltaic inverter |
-
2010
- 2010-05-24 CN CN2010202034122U patent/CN201679549U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111464045A (en) * | 2020-05-11 | 2020-07-28 | 甘肃上航电力运维有限公司 | Tree-shaped heat dissipation device for sealed photovoltaic inverter |
| CN111464045B (en) * | 2020-05-11 | 2024-06-11 | 国华卫星数据科技有限公司 | Tree-shaped heat dissipation device of sealed photovoltaic inverter |
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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: 20101222 Termination date: 20160524 |