CN2493762Y

CN2493762Y - Fan wheel

Info

Publication number: CN2493762Y
Application number: CN 01232625
Authority: CN
Inventors: 洪银树; 李朝勋
Original assignee: Sunonwealth Electric Machine Industry Co Ltd
Current assignee: Sunonwealth Electric Machine Industry Co Ltd
Priority date: 2001-07-31
Filing date: 2001-07-31
Publication date: 2002-05-29
Anticipated expiration: 2011-07-31

Abstract

The utility model relates to a fan wheel that rotates through a rotating axis being pivoted with a wheel boss. The periphery of the wheel boss is provided with a ring plate connected with the wheel boss. One end of a plurality of vanes is in fork joint and fixed in the upper and lower surfaces of the ring plate. The vanes extend outwards in a radical shape from the wheel boss. The fan wheel can suck air in double direction and has an extremely better air intake and blast effect.

Description

A kind of impeller

Technical field

The utility model system is relevant for a kind of impeller, but two-way air intake especially, and the impeller with improvement structure of preferable air intake and air-supply effect.The impeller field that belongs to blast device.

Background technique

As shown in Figure 1, it is a kind of known blowing-type fan, establish a stator 91 by the vortex passage of a shell block 90, this stator 91 articulates rotation for an impeller 92, shell block 90 is by a cover plate 93 cover caps, cover plate 93 has intake grill 94, by the rotation of impeller 92, by flabellum 95 cooling air is sucked by intake grill 94.By exhaust outlet 96 cooling air is sent.Because this known blowing-type fan only has single intake grill 94 and exhaust outlet 96, therefore, the known blowing-type fan of this kind only can drive less cooling air, and its radiating effect is not good.

For another shown in Figure 2, it is a kind of known blowing-type fan, the shell block 80 of this fan is except that having exhaust outlet 86, this shell block 80 also is provided with intake grill 87 at the base plate in conjunction with stator 81, and therefore, the stator 81 of this fan is when articulating impeller 82, the rotation of this impeller 82, except that can cooling air being sucked the cooling air by intake grill 84 by flabellum 85, the intake grill 87 of these shell block 80 base plates can also be made partly cooling air of complementary suction, again with being sent by exhaust outlet 86.The known blowing-type fan of this kind, though can make complementary suction part cooling air to reach upper and lower two-way air intake, phase can increase radiating effect, but when cooling air respectively by the intake grill 84 of cover plate 83, and when sucking, should will collide by the cooling air that two sides are up and down sucked and form sinuous flow, therefore by the intake grill 87 of base plate, the radiating effect that this fan increased also belongs to limited, and can increase the noise when rotating.

Summary of the invention

The purpose of this utility model is that a kind of impeller will be provided, and this impeller can increase air output effectively, makes this fan have preferable radiating effect.

Technological means of the present utility model is:

A kind of impeller has rotating shaft and blade, it is characterized in that: the rotation that is articulated of this rotating shaft and wheel hub, this wheel hub periphery is established the ring flat-plate that is connected with wheel hub, connects fixing for an end yoke of blade jointly by the above and below of this ring flat-plate.Wherein

This ring flat-plate is the formative gear shape.And

Each tooth limit of this gear shape ring flat-plate is provided with outward extending blade.And

Two lateral lobe faces of each blade are the crest line portion that is formed bigger protrusion by the centre, and the top and bottom ends system of blade forms thin wing afterbody.And

Be to form the arc concave surface between the crest line portion of each blade and crest line portion.

Impeller structure of the present utility model, when this wheel hub rotation, blade system can be mobile by the upper and lower propellant of wheel hub simultaneously, and this air-flow is isolated by ring flat-plate, therefore, the cool air that this two different direction is sucked, can't produce mutual collision to each other and form flow-disturbing, and this cooling air will be by vane drive, and is discharged by the exhaust outlet of fan case seat, therefore, the two-way air intake impeller of this case can increase the suction and the discharge capacity of cooling air, relatively, this case has bigger cool air driven quantity, and preferable radiating effect.

Moreover, because ring is located at the ring flat-plate system of wheel hub week side can the formative gear shape, therefore, can be followed blade to be discharged fast by the cooling air of vane drive, can not form the dead angle in the above and below and the blade connecting part of ring flat-plate, therefore, the two-way air intake impeller of this case also can have better radiating effect.

Description of drawings

Fig. 1: first commonly uses the structure exploded perspective view.

Fig. 2: second commonly uses the structure exploded perspective view.

Fig. 3: the utility model first embodiment's stereogram.

Fig. 4: the utility model first embodiment's top view.

The 5-5 line sectional drawing of Fig. 5: Fig. 4.

Fig. 6: the utility model first embodiment makes the use-case sectional drawing.

Fig. 7: the utility model second embodiment's stereogram.

Fig. 8: the utility model second embodiment's top view.

The 9-9 line sectional drawing of Fig. 9: Fig. 8.

Embodiment

In conjunction with the accompanying drawings, the utility model is lifted the following example explanation:

First preferred embodiment:

As shown in Figure 3, this impeller system is articulated rotation (as shown in Figure 5) by a wheel hub 1 with its rotatingshaft 11, be provided with around this wheel hub 1 one around ring flat-plate 12, this ring flat-plate 12 becomes gapless with 1 of wheel hub and connects airtight, and fix for an end of number blade 13 by this ring flat-plate 12, the blade 13 of this fixed end is the above and below of fork-join at ring flat-plate 12, and this end in addition of counting blade 13 is by the extension of the outside radial of wheel hub.

Please read shown in Fig. 4,5, it is the combination situations of the utility model first preferred embodiment, wheel hub 1 is to be articulated in the stator rotation with rotatingshaft 11, and by establishing a permanent magnet 14 in this wheel hub 1, wheel hub 1 all sides extend one around ring flat-plate 12, the above and below of this ring flat-plate 12 is connected with an end of blade 13 jointly.

As shown in Figure 6, it is the use situation of the utility model first preferred embodiment, this blade 13 can be by the last wind inlet 21 of fan case seat 2, following wind inlet 22 sucks cooling air respectively, and the cooling air of this suction is because be subjected to separating of ring flat-plate 12, therefore, the cool air that this two different direction is sucked, can't produce mutual flow-disturbing to each other, and this cooling air will be driven by blade 13, exhaust outlet 23 by fan case seat 2 is discharged, and therefore, two-way air intake impeller of the present utility model can increase the suction and the discharge capacity of cooling air, correspondingly the utlity model has preferable radiating effect, and can reduce Rotation Noise.Second preferred embodiment:

As shown in Figure 7, this impeller remains by a wheel hub 3 can be articulated rotation with its rotatingshaft 31, be provided with the ring flat-plate 32 that one connects around the wheel hub 3,32 one-tenth gear shapes of ring flat-plate, outward extending blade 33 is established on each tooth limit at this gear shape ring flat-plate 32, and an end of this blade 33 be engaged on this ring flat-plate 32 on, below, again and, for making this blade 33 have preferable pilot gas flow effect, when these wheel hub 3 rotations, two lateral lobe faces of this blade 33 are to form the crest line portion 34 with bigger protrusion amount by the intermediate portion, and by the top of this crest line portion 34 to blade 33, the bottom forms gradually thin wing afterbody 35 (as shown in Figure 9), 35 of this crest line portion 34 and wing afterbodys can form the arc concave surface, therefore, when wheel hub 3 rotations, this blade 33 has the mobile effect of preferable propellant; Again and, because this ring flat-plate 32 is the formative gear shape, therefore, during wheel hub 3 rotations, can be followed blade 33 to be discharged fast by the cooling air that blade 33 drives, can not form the dead angle in the connecting part of ring flat-plate 32 above and below and blade 33, therefore, the two-way air intake impeller cording of present embodiment has better radiating effect.

Claims

1, a kind of impeller has rotating shaft and blade, it is characterized in that: the rotation that is articulated of this rotating shaft and wheel hub, this wheel hub periphery is established the ring flat-plate that is connected with wheel hub, connects fixing for an end yoke of blade jointly by the above and below of this ring flat-plate.

2, by the described impeller of claim 1, it is characterized in that: this ring flat-plate is the formative gear shape.

3, by claim 1 or 2 described impellers, it is characterized in that: each tooth limit of this gear shape ring flat-plate is provided with outward extending blade.

4, by the described impeller of claim 1, it is characterized in that: two lateral lobe faces of each blade are the crest line portion that is formed bigger protrusion by the centre, and the top and bottom ends of blade system forms thin wing afterbody.

5, by claim 1 or 4 described impellers, it is characterized in that: be to form the arc concave surface between the crest line portion of each blade and crest line portion.