CN102261346A

CN102261346A - Fan wheel

Info

Publication number: CN102261346A
Application number: CN2010101858558A
Authority: CN
Inventors: 洪银树; 尹佐国
Original assignee: Sunonwealth Electric Machine Industry Co Ltd
Current assignee: Sunonwealth Electric Machine Industry Co Ltd
Priority date: 2010-05-28
Filing date: 2010-05-28
Publication date: 2011-11-30

Abstract

The invention relates to a fan wheel, which comprises a hub, a plurality of blades and a liquid stirring layer, wherein the hub is provided with an annular wall part; a plurality of blades are arranged on the peripheral surface of the annular wall part; the liquid stirring layer is formed by a water and oil stirring agent and is wrapped on surfaces of the hub and the blades, so that liquid such as water or oil and the like can be prevented from attached to the surface of the fan wheel; and thus, the influences of dust accumulation on radiating efficiency and rotary equilibrium can be prevented to maintain the high radiating efficiency and improve the service life of the fan device effectively.

Description

Impeller

Technical field

The present invention particularly can prevent sealing or wet goods liquid attached to the impeller surface about a kind of about a kind of impeller, also can avoid the impeller of dust accretion simultaneously.

Background technique

Because electronic product can send high heat in use, therefore must be by sink (for example: radiation fan) driven heat, reduce the operating temperature of electronic product whereby, so that this electronic product can be maintained at a preferable task performance.

Please refer to shown in Figure 1ly, the impeller 9 of existing radiation fan comprises a wheel hub 91 and several blades 92, and this wheel hub 91 is provided with a rotatingshaft 911, in order to as pivot point; These several blades 92 are equidistantly arranged the periphery wall that is arranged at this wheel hub 91.The axle bed that should existing impeller 9 can be installed in a fan frame by this rotatingshaft 911, and can drive by a stator should existing impeller 9 rotary works so that should can import extraneous air-flow by existing impeller 9, and drives extraneous air-flow and carries out thermolysis.

Generally speaking, under long-time the use, be attached with water or wet goods liquid easily owing to be somebody's turn to do the wheel hub 91 of existing impeller 9 and the surface of blade 92, cause dust to be built-up in this wheel hub 91 and blade 92 surfaces easily, cause the accumulation of impurity and dirt, so, this dust and dirt reduce advancing of this existing impeller 9 except meeting, air output, and have a strong impact on outside the radiating efficiency of this existing radiation fan, even cause this existing impeller 9 that the phenomenon of double swerve takes place in actual rotary course easily, cause the associated components of this existing impeller 9 to run foul of each other and damage, and then shorten the working life of existing structure relatively.Again, trend along with the electronic product microminiaturization, make dust more remarkable with respect to the influence into and out of air quantity of microminiaturized radiation fan, so, the easier trend that obviously presents downslide owing to the accumulation of dust and dirt of radiating efficiency that causes radiation fan, cause the operating temperature that can't effectively reduce electronic component, and then shorten the working life of electronic product relatively.For these reasons, it is necessary further to improve above-mentioned existing impeller 9 really.

Summary of the invention

The invention provides a kind of impeller, mainly can prevent sealing or wet goods liquid attached to the impeller surface, and can avoid dust accretion to influence radiating efficiency, be purpose of the present invention.

The invention provides a kind of impeller, can prevent dust accretion, avoid associated components to collide mutually and damage, effectively promote the working life of fan assembly, be another object of the present invention to keep good spin balancing.

The invention provides a kind of impeller, under long-time use, still can keep splendid radiating efficiency,, be another purpose of the present invention with the working life of relative prolongation electronic product.

The invention provides a kind of impeller, can make and possess preferable oil content between impeller and the bearing, effectively keep lubrication effect, be another purpose of the present invention.

For reaching aforementioned goal of the invention, the technological means that the present invention used has:

A kind of impeller comprises: a wheel hub has a ringwall portion; Several blades are arranged at this ringwall portion outer circumferential face; And one group of liquid layer, being constituted by a water extraction oil extracticn agent, it is coated on the surface of this wheel hub and blade.

Beneficial effect of the present invention is: mainly utilize this group liquid layer to prevent that sealing or wet goods liquid are built-up in this impeller surface, avoid dust accretion to influence the spin balancing into and out of air quantity and this impeller of these several blades simultaneously, make this impeller perseverance be maintained at splendid radiating efficiency and good spin balancing whereby, with the working life of relative prolongation fan assembly and electronic product.

Description of drawings

Fig. 1: the schematic perspective view of existing impeller.

Fig. 2: the stereogram of first embodiment of the invention.

Fig. 3: the section plan of first embodiment of the invention.

Fig. 4: the section plan of second embodiment of the invention.

Fig. 5: the impeller of second embodiment of the invention is incorporated into the fan assembly section plan.

Fig. 6: the partial enlarged drawing of second embodiment of the invention.

The primary component symbol description:

1 wheel hub, 11 ringwall portions, 12 containing spaces, 13 axle beds

3 groups of liquid layers of 2 blades, 4 rotatingshafts, 8 fan assemblys

81 bearings, 82 central siphons, 9 impellers, 91 wheel hubs

911 rotatingshafts, 92 blades

Embodiment

For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and conjunction with figs. are described in detail below:

Please refer to shown in the 2nd and 3 figure, the impeller of first embodiment of the invention is mainly used on the fan assembly 8 (as shown in Figure 5), and this fan assembly 8 may be selected to be axial flow fan or blowing-type fan.Wherein, the impeller of present embodiment is selected to illustrate as example that with an axial flow impeller this impeller comprises a wheel hub 1, several blades 2 and one group of liquid layer 3.This wheel hub 1 generally is hollow cylindrical; These several blades 2 are arranged the outer circumferential face that is arranged at this wheel hub 1; This group liquid layer 3 is coated on the surface of this wheel hub 1 and these several blades 2.

This wheel hub 1 has a ringwall portion 11, and this ringwall portion 11 is around being formed with a containing space 12, and this containing space 12 can be for assembling as members such as permanent magnet, envelope magnetic sheet and rotatingshafts.

These several blades 2 are arranged the outer circumferential face of the ringwall portion 11 that is arranged at this wheel hub 1, and respectively these blade 2 relative these wheel hubs 1 axially is skewed setting, when driving this wheel hub 1 rotary work, these several blades 2 can import extraneous air-flow, and drive extraneous air-flow heating source is carried out thermolysis.

This group liquid layer 3 is coated on the surface of this wheel hub 1 and these several blades 2, in order to increase the wrapping angle on water droplet or oil droplet and himself surface, so that reduce the area of contact between this group liquid layer 3 surfaces and water droplet or the oil droplet relatively, make this wheel hub 1 and the surface of these several blades 2 form the surface that has hydrophoby and fuel shedding concurrently.For example, the preferable selection of the present invention utilizes modes such as bristle, impregnation (DIP) or spraying to coat the surface of this wheel hub 1 and these several blades 2 one water extraction oil extracticn agent, treats promptly to form this group liquid layer 3 after this water extraction oil extracticn agent drying; Wherein, this group liquid layer 3 preferable selections form in secondary impregnation mode, increase the thickness of this group liquid layer 3 whereby, so that promote the hydrophoby of this group liquid layer 3 and the effect of fuel shedding relatively.Preferable fluoroplast or the alkyl ethene urea derivative etc. of may be selected to be of water extraction oil extracticn agent of the present invention.

When first embodiment of the invention is used in reality, owing to only have area of contact among a small circle between water droplet or oil droplet and this group liquid layer 3 surfaces, the inertial force that is produced when therefore utilizing this wheel hub 1 rotation can be taken advantage of a situation and be made it break away from the surface of this wheel hub 1 or blade 2 easily, can effectively avoid water or wet goods liquid to be built-up in this impeller surface whereby, and can reduce this impeller surface produces dirt because of dust accretion situation generation, whereby except guaranteeing advancing of this impeller, air-out efficient can maintain in the splendid scope, can guarantee further that more this impeller can have good spin balancing, effectively avoid this impeller in rotary course, to produce the phenomenon of double swerve.

The major technique characteristics of impeller of the present invention are: the surface that is coated on this wheel hub 1 and these several blades 2 by this group liquid layer 3, effectively avoid water or wet goods liquid to be built-up in the surface of this impeller, and can prevent the accumulation of dust and have a strong impact on radiating efficiency to have splendid radiating effect to guarantee this fan assembly 8.

Again,, make this impeller perseverance in rotary course keep good spin balancing, avoid associated components to collide mutually and damage whereby, effectively promote the working life of this fan assembly because impeller of the present invention can prevent dust accretion.

In addition, because impeller of the present invention is not vulnerable to water, oil or effect of dust under long-time the use, make this fan assembly 8 be able under long-time the use, still to continue the radiating effect that provides splendid, make the electronic component perseverance be maintained at a splendid operating temperature whereby, and then can significantly promote the working life of electronic product.

Please refer to shown in Figure 4, it discloses the impeller of second embodiment of the invention, compared to first embodiment, second embodiment's impeller is provided with a rotatingshaft 4 in addition, and the shaft core position of this wheel hub 1 is provided with an axle bed 13, one end correspondence of this rotatingshaft 4 is incorporated into this axle bed 13, and is placed in the containing space 12 of this wheel hub 1.In the present embodiment, the surface of this rotatingshaft 4 is provided with this group liquid layer 3 equally, and this group liquid layer 3 preferable surfaces of only selecting to be formed at these rotatingshaft 4 contiguous these axle beds 13; Perhaps, this group liquid layer 3 also can select to be coated on fully the surface of this rotatingshaft 4.

Please refer to shown in Fig. 5 and 6, when second embodiment of the invention is used in reality, by this rotatingshaft 4 and a bearing 81 under the situation in the rotating central siphon 82 that is incorporated into this fan assembly 8, dial liquid layer 3 in the axial direction a little more than the end face of this bearing 81 on this rotatingshaft 4 at this impeller; When these rotatingshaft 4 rotary works, the lubricant oil between this rotatingshaft 4 and the bearing 81 can be subjected to the guiding of centrifugal force and rise along the outer wall of this rotatingshaft 4; When this lubricant oil rises to the dialling liquid layer 3 and contact with each other of this rotatingshaft 4 surfaces, because this lubricant oil can't be attached to this group liquid layer 3, so, this lubricant oil then can't be again rises along the outer wall of this rotatingshaft 4, the inertia that is produced during simultaneously by these rotatingshaft 4 rotations, what this lubricant oil is taken advantage of a situation break away from this rotatingshaft 4 dials liquid layer 3, and be back in this bearing 81 along the surface of this bearing 81 whereby, make between this rotatingshaft 4 and the bearing 81 and possess preferable oil content, effectively avoid this lubricant oil to leak and influence life-span of this fan assembly 8.

Whereby, the impeller of second embodiment of the invention, except having the identical effect and effect with this first embodiment is described, this second embodiment more can make between this rotatingshaft 4 and the bearing 81 and possess preferable oil content, keep the ability of profit certainly between this rotatingshaft 4 and the bearing 81, and further promote the service life of electronic product.

Claims

1. impeller is characterized in that comprising:

A wheel hub has a ringwall portion;

Several blades are arranged at this ringwall portion outer circumferential face; And

Dial liquid layer, constituted for one by a kind of water extraction oil extracticn agent;

Wherein, the surface of this wheel hub and blade is covered with this group liquid layer.

2. according to the described impeller of claim 1, it is characterized in that the shaft core position of this wheel hub is provided with an axle bed, this axle bed is provided with a rotatingshaft, and the outer circumferential face of this rotatingshaft is provided with this group liquid layer.

3. according to the described impeller of claim 2, it is characterized in that this group liquid layer is arranged at the surface of contiguous this axle bed of this rotatingshaft.

4. according to claim 1,2 or 3 described impellers, it is characterized in that this water extraction oil extracticn agent is fluoroplast or alkyl ethene urea derivative.