CN2859036Y

CN2859036Y - Dual system fan cowing structure

Info

Publication number: CN2859036Y
Application number: CN 200520047786
Authority: CN
Inventors: 吴敏瑞
Original assignee: Handa Precision Science & Tech Co Ltd; Shanghai Huanda Computer Technology Co Ltd
Current assignee: Mitac Precision Technology Shunde Ltd
Priority date: 2005-12-20
Filing date: 2005-12-20
Publication date: 2007-01-17
Anticipated expiration: 2015-12-20

Abstract

The present utility model relates to a ventilation cover with dual system fan applied to the cooling units of the electronic equipment. It includes a framework of the ventilation cover, at both side faces of which there are two lateral plates with the shape of isoceles triangle, said lateral plates connect with the two clip strips at back corner respectively, said clip strips are integrally set on the lateral plates. A main fan and a spare fan are set at the right-angle side adjacent to two lateral plates, a guide blade is set between two fans, at one end of which there is a rotating shaft integrally set on the guide blade, both ends of the guide blade extrude to be embeded into the fixed hole at the corresponding right-angle of two lateral plates so as to make the guide blade revolve freely in the framework of the ventilation cover.

Description

Wind-lead-cover structure of double-system fans

[technical field]

The relevant a kind of wind-lead-cover structure of the utility model, particularly relevant a kind of wind-lead-cover structure of double-system fans that can improve the fan utilization ratio.

[background technique]

With the wind scooper design of existing band system reserve fan, have dual mode optional: one is shown in Figure 1, and wherein 1 ' is main fan, 1 " and be spare fans, two fans be arranged in parallel, and so occupation space is fewer comparatively speaking.If main fan 1 ' damages, enable spare fans 1 " time, the flabellum of main fan 1 ' will stop spare fans 1 " path of air-flow, if pin the flabellum of main fan 1 ', then will have a strong impact on spare fans 1 " the air-flow guiding; It two is shown in Figure 2, wherein 2 ' is main fan; 2 " be spare fans, the orthogonal placement of two fans, wind direction shown in arrow among the figure is when spare fans 2 " when working; because the influence in main fan 2 ' flabellum space; will cause most of air-flow to be back to spare fans 2 via this space ", and have only the minority air-flow from wind scooper, to derive, so just make that the utilization ratio of fan is not high.Also there is such problem when equally, main fan 2 ' is worked.

By as can be seen above, existing double-system fans exists tangible deficiency, and is abundant inadequately to the utilization of fan.

[summary of the invention]

The utility model purpose is to provide a kind of double-system fans wind scooper that has guide vane, helps to improve the utilization ratio of fan.

For achieving the above object, the utility model wind-lead-cover structure of double-system fans, on its radiating element applicable to electronic equipment, this structure comprises a wind scooper framework, its both sides are respectively equipped with a relative side plate; Another guide vane is built in the wind scooper framework, and one end both sides respectively are provided with a rotating shaft, and this rotating shaft is embedded on the framework biside plate.

Compared to prior art, the utility model can rely on its barrier effect to air-flow that fan produces by a guide vane is set in the wind scooper framework, make the backflow phenomenon between two fans be reduced to floor level, thereby improved the utilization ratio of fan.When proper functioning, this main fan runs well, and the guide vane concora crush is on spare fans, and the air-flow that main fan forms is owing to the barrier effect of guide vane is derived from wind scooper fully; When main fan breaks down, when enabling spare fans, guide vane will be in rotation on axially under the air-flow effect of spare fans, and finally is resisted against the surface of main fan, and the air-flow that so makes spare fans produce is also derived from wind scooper fully.

For making the purpose of this utility model, structure characteristics and function thereof there are further understanding, cooperate icon to be described in detail as follows now:

[description of drawings]

Fig. 1 is the existing parallel placement schematic representation of double-system fans.

Fig. 2 vertically places schematic representation for existing double-system fans.

Fig. 3 is the three-dimensional appearance schematic representation of the utility model wind-lead-cover structure of double-system fans.

Fig. 4 is the decomposing schematic representation of each parts of the utility model wind-lead-cover structure of double-system fans.

[embodiment]

See also shown in Figure 4ly, be the three-dimensional appearance schematic representation of the utility model wind-lead-cover structure of double-system fans, this wind-lead-cover structure of double-system fans is provided with a wind scooper framework 2, and this wind scooper framework 2 comprises corresponding side plate 20 of two-phase and two relative card articles 21.Wherein, these side plates 20 are isosceles right triangle, it lays respectively at the both sides of wind scooper framework 2, and these side plates 20 link together by two card articles 21 that lay respectively at its limit, two ends, these card articles 21 are also one-body molded with these side plates 20, and these card articles 21 have an angle with the substantially horizontal of two side plates 20 respectively, and two side plates 20 respectively are provided with a fixed hole 22 being positioned at its place, right angle again, and these fixed holes 22 also are relative.

In addition, be embedded with a guide vane 3 in this wind scooper framework 2, the both sides of these guide vane 3 one ends extend outward rotating shaft 30 respectively, these rotating shafts 30 can be set in the fixed hole 22 respectively, so this guide vane 3 can be suspended in the framework 2, and be central point with rotating shaft 30, in framework 2, come back rotation, and framework 2 can be separated into two containing spaces.

Moreover, in this containing space, be linked with a fan respectively, wherein be in the horizontal plane Vertical direction for main fan 10, elsewhere in the horizontal plane substantially horizontal be spare fans 11, these fan one ora terminalis respectively buckles card article 11 inboard and, another ora terminalis then is pressed in the rotating shaft 30, and is fixed in the framework 2, and this guide vane 3 is stood between this two fan (as shown in Figure 3) at a certain angle.

During installation, please jointly with reference to Fig. 3, shown in Figure 4, force in this wind scooper framework 2 earlier, make its biside plate 20 drift angle places outwards open a little, embed by rotating shaft 30 in the fixed hole 22 of side plates 20, guide vane 3 can be sheathed in the wind scooper framework 2, then again the combination of this wind scooper framework 2 is mounted in the angle between main fan 10 and the spare fans 11, and make two card articles 21 be mounted on two fan outer ledges, thereby fixing wind scooper framework 2.In the time will being installed on cabinet, this integral body can be fixed in the cabinet inwall or by electronic device week with deciding fan by screw, and the components and parts that the angle of cut aligning of two fans will be dispelled the heat get final product simultaneously.

See also Fig. 2, shown in Figure 3, when main fan 10 ran well, guide vane 3 was covered in the surface of spare fans 11 under the effect of main fan 10 stream pressures, and via wind scooper framework 2 sent fully by main fan 10 formed air-flows this moment.

If main fan 10 hinders for some reason and stops operating, when enabling spare fans 11, guide vane 3 will overcome self gravitation around guide vane rotating shaft 30 rotations under the effect of spare fans 11 air-flow that produces, and finally be posted by main fan 10, and the external and internal pressure difference of wind scooper framework 2 also makes guide vane 30 continue to be close to main fan 10 at this moment, send by wind scooper framework 2 thereby air-flow is concentrated, so just make more abundant the utilization of fan.

Compared to prior art, the utility model can rely on its barrier effect to air-flow by a guide vane is set in the wind scooper framework, make the backflow phenomenon between two fans be reduced to floor level, thereby improved the utilization ratio of fan.

Claims

1. wind-lead-cover structure of double-system fans, on its radiating element applicable to electronic equipment, it is characterized in that: this structure comprises:

One wind scooper framework, its both sides are respectively equipped with a relative side plate;

One guide vane is built in the wind scooper framework, and one end both sides respectively are provided with a rotating shaft, and this rotating shaft is embedded on the framework biside plate, and making guide vane can rotating shaft be that the center rotates in framework.

2. wind-lead-cover structure of double-system fans as claimed in claim 1 is characterized in that: this side plate is isosceles triangle, and it locates the connection of two card articles by the base angle respectively, and this place, corresponding right angle of two side plates respectively is provided with a relative fixed hole.

3. wind-lead-cover structure of double-system fans as claimed in claim 2 is characterized in that: the substantially horizontal of this card article and two side plates has an angle.