CN2476669Y - Improved structure of heat radiation fan - Google Patents

Abstract

The utility model is an improved structure of cooling fan. The technical proposal of the utility model is that bottom of a round plate is provided with an upward concave containing part which is used for containing a motor. The edge of the round plate is provided with a plurality of blades which extend outward in arch shape. The blades are arrayed regularly along the edge of the round plate. A convex surface and a concave surface are arranged at the two sides of the blade. The convex surface is provided with a guide part which bulges in a reverse direction with the concave surface of the blade. Wherein, at least one arch surface is arranged at the position where the guide part is connected with the blade. The improved structure of cooling fan has the advantages of excellent cooling efficiency, reducing the air inlet resistance and decreasing the motor load, thereby prolonging the useful time. Besides, the mould of the utility model is comparatively simple, which can reduce the production cost.

Description

The improvement structure of radiation fan

The utility model relates to a kind of improvement structure of radiation fan, and the convex surface that particularly relates to a kind of arc shaped blade has the radiation fan of diversion division.

The volume of known notebook is little, be the characteristic that makes it have gently, approach, the dealer with radiation fan by directly advancing the mode that directly goes out, be improved to directly to advance the horizontal mode (as the air blast type) that goes out, as Fig. 8 and shown in Figure 9, it is existing radiation fan, it is to extend the blade 82 with curved surface in rotating disk 81 peripheries, and 82 in blade has the wind cutting angle a of inclination, and with the cambered surface wind-guiding of blade 82, and, make air have pressure and be pushed out in supercharging herein; But, this kind fan only has to go up inhales the function that side goes out, therefore promptly can only be to the system thermal heat radiation of single direction, promptly inapplicable for the upper and lower machine that all need dispel the heat, and blade 82 can only carry out wind cutting to few air with its wind cutting angle a, the noise event of its generation is so very little, but suction air volume also is not enough; Secondly, this kind radiation fan penetrates to make with plastics usually and forms, can reduce cost, but plastics penetrate required mould, essentially cooperate complicated blade 82 cambered surfaces design, so its mould promptly can not upper and lower die sinking, and must have most die (not shown) to stretch between each blade 82, but the manufacturing complexity and the cost of this kind mould are high, and the part that need reduce cost for the utmost point, and inapplicable.

Other has a kind of as Figure 10 and known radiation fan shown in Figure 11, and it is the outwards slightly oblique blades 92 that protrude out most straight sheets around rotating disk 91, but and be upper and lower all air draughts, and with above-mentioned person relatively can be upper and lower to system radiating.And when making, so so can improve the manufacturing complexity and the cost of aforementioned wind cutting type radiation fan, and be can upper and lower die sinking, but this kind blade 92 is when rotating, be not that air is carried out wind cutting, but pat, it not only easily splashes spray just like striking waters with plank, can produce bigger noise especially, and blade 92 is when patting air, and the air of blade 92 upper and lower edge can be pushed, and upper and lower air intake is produced resistance, this group of power can directly influence the load of motor (not shown), and then reduces the working life of motor.

The purpose of this utility model is to solve the above problems and a kind of improvement structure of radiation fan is provided.

The utility model relates to a kind of improvement structure of radiation fan, it is characterized in that, it has a disk, the bottom of this disk has a holding part that upwards caves in, and the periphery of this disk has the blade of a plurality of outside curved extensions, the curved extension of these a plurality of blades, and in respectively forming a convex surface and a concave surface on this blade, has a diversion division that oppositely protrudes with the concave surface of this blade on this convex surface, this diversion division position that links to each other with this blade has a cambered surface at least, to increase the water conservancy diversion effect of air-out direction.

Improvement structure according to radiation fan described in the utility model, wherein, this disk and these a plurality of blades are located in the housing, this housing in the top and the bottom have an intake grill respectively, and the side of this housing then has an exhaust outlet, and this housing bottom intake grill inboard is provided with a fixed tray, and this fixed tray central position is provided with a motor, this motor has a upwardly extending rotating shaft, and the upper end of this rotating shaft is the center that is incorporated into this disk;

Wherein, the holding part of this disk can ccontaining this motor;

Wherein, respectively the normal of this blade and this each engagement positio of disk is 15 °-75 ° angle;

Wherein, this diversion division be located at this blade up and down between, or be located at the root edge position of this blade, or be located at this blade near root edge or apical margin position.

Brief Description Of Drawings:

Fig. 1 is the utility model first embodiment's a stereogram;

Fig. 2 is the utility model first embodiment's a plan view, and wherein arrow is meant air-flow direction;

Fig. 3 is the utility model first embodiment's a side view, and wherein arrow is meant air-flow direction;

Fig. 4 is the utility model first embodiment's a user mode schematic representation;

Fig. 5 is the V-V sectional view of Fig. 4;

Fig. 6 is the utility model second embodiment's a side view;

Fig. 7 is the utility model the 3rd embodiment's a side view;

Fig. 8 is the stereogram of known radiation fan;

Fig. 9 is the side view of Fig. 8;

Figure 10 is the stereogram of another kind of known radiation fan;

Figure 11 is the side view of Figure 10.

Embodiment's detailed description:

See also Fig. 1 to Fig. 5, the utility model is located in the housing 10, this housing 10 in the top and the bottom have an intake grill 11 respectively, and the side of this housing 10 then has an exhaust outlet 12, and these housing 10 bottom air inlet mouths 11 inboards are provided with a fixed tray 13, these fixed tray 13 central position are provided with a motor 14, this motor 14 has a upwardly extending rotating shaft 141, the upper end of this rotating shaft 141 is incorporated into the center of a disk 20, the bottom of this disk 20 has a holding part 22 that upwards caves in, can ccontaining this motor 14 in this holding part 22, the periphery of this disk 20 has the blade 21 of a plurality of outside curved extensions in addition, these a plurality of blades 21 are counterclockwise arc and extend (seeing it from top to bottom), each blade 21 also is 15 °-75 ° angle with the normal L of these disk 20 each engagement positios, and in respectively forming a convex surface 211 and a concave surface 212 on this blade 21, on one side of this convex surface 211, under the neutral position, have diversion divisions 213 that oppositely protrude with the concave surface 212 of this blade 21, this diversion division 213 and this blade 21 position that links to each other up and down has a cambered surface 214 respectively.

It should be noted that: the utility model is subjected to the driving of this motor 14, and when rotating counterclockwise (seeing it from top to bottom), form a flow-disturbing Space H around in this housing 10, respectively this blade 21 of these disk 20 peripheries is then to the air wind cutting of its rotate path front end, and this air is in being subjected to wind cutting simultaneously, also promoted forward by the convex surface 211 of this blade 21, after air is herein left by drive, other air is then entered by this intake grill 11, in addition by wind cutting and the air taken away, then along the cambered surface 214 of 211 on this diversion division 213 and this convex surface, flow (as shown in Figures 2 and 3) in open end toward this blade 21, after air leaves the promotion of blade 21, can in the emission quotas H of housing 10, form supercharging, can discharge by this exhaust outlet 12 by the air of supercharging.

When using the utility model, the utility model is to be located at a notebook (not shown) inside, because when the utility model is driven by motor 14, the diversion division 213 of this blade 21 is separated out upper and lower this two cambered surface 214, so that the air that is entered by upper and lower intake grill 11 all can be driven by this blade 21, this blade about in the of 21 two sides all can produce wind cutting to air, therefore these housing 10 upper and lower intake grills 11 all can suck the heat of computer (not shown) system generation, so the utility model can carry out two-way air intake, its radiating effect is preferable.In addition, when respectively 21 pairs of air of this blade carry out wind cutting, be that directly the outside ora terminalis of past its inboard and blade 21 flows (as shown in Figure 3) according to cambered surface 214 with air, so by the not two side channelling up and down of the air of wind cutting, therefore to intake grill 11 inhaled airs, can't cause resistance, when the resistance of this air intake reduces, the load of this motor 14 also can reduce, the life-span of this motor 14 also can increase, and blade 21 of the present utility model is with 214 pairs of air wind cuttings of cambered surface and increases the water conservancy diversion effect, but not pats, so can reduce the generation of noise.Secondly, blade 21 of the present utility model does not have complicated curved surface, so during fabrication, can be designed to lower open die, and manufacture cost also can reduce.

Comprehensively above-mentioned, the blade 21 of the utility model radiation fan can all can be driven by this blade 21 air that upper and lower intake grill 11 enters, to reach preferable radiating effect, and with the cambered surface wind cutting of blade 21 and increase the water conservancy diversion effect,, also make not channelling up and down of air simultaneously to reduce the generation of noise, except reducing the resistance that sucks air, and can increase air output, also can reduce the load of motor 14, to increase the life-span of motor 14.More in design, so that its Mould design is comparatively simple, to reduce the cost of making by blade 21 diversion divisions 213.

Certainly, still there are many embodiments in the utility model, and the variation on the details is only arranged therebetween.See also shown in Figure 6, it is second embodiment of the present utility model, it is that the diversion division 32 on this blade 31 is located at its root edge position, 33 on this diversion division 32 and this convex surface only have a top cambered surface 34, that is this blade 31 to drive the effect of top intake grill (not shown) preferable, make the utility model also can be identical and have a function of unidirectional exhausting with known person.

See also shown in Figure 7, it is the 3rd embodiment of the present utility model, it is that this diversion division 41 is located at this blade 42 nearer apical margin positions, make this blade 42 have the cambered surface 43 of different sizes, and the blade 42 of the diversion division 41 upper and lower width that do not wait can be set at different intake grill (not shown) areas.

The advantage that the improvement structure of radiation fan described in the utility model has is that on its structure, the cambered surface upper and lower by blade can all can be driven by this blade the air that upper and lower intake grill enters, to reach preferable radiating effect;

The improvement structure of radiation fan described in the utility model provides a kind of cambered surface wind cutting with blade in addition, to reduce the generation of noise, also make simultaneously not channelling up and down of air,, reach the increase suction air volume to reduce the resistance that sucks air, and the load of minimizing motor, to increase motor life;

The improvement structure of radiation fan described in the utility model also provides the design of a kind of confession by the blade diversion division simultaneously, so that its Mould design is comparatively simple, to reduce manufacture cost.

Claims (7)

1. the improvement structure of a radiation fan, it is characterized in that, it has a disk, the bottom of this disk has a holding part that upwards caves in, and the periphery of this disk has the blade of a plurality of outside curved extensions, the curved extension of these a plurality of blades, and in respectively forming a convex surface and a concave surface on this blade, have a diversion division that oppositely protrudes with the concave surface of this blade on this convex surface, this diversion division position that links to each other with this blade has a cambered surface at least.

2. the improvement structure of radiation fan according to claim 1, it is characterized in that, this disk and these a plurality of blades are to be located in the housing, this housing in the top and the bottom have an intake grill respectively, and the side of this housing then has an exhaust outlet, and this housing bottom intake grill inboard is provided with a fixed tray, and this fixed tray central position is provided with a motor, this motor has a upwardly extending rotating shaft, and the upper end of this rotating shaft is the center that is incorporated into this disk.

3. the improvement structure of radiation fan according to claim 1 is characterized in that, the holding part of this disk can ccontaining this motor.

4. the improvement structure of radiation fan according to claim 1 is characterized in that, respectively the normal of this blade and this each engagement positio of disk is 15 °-75 ° angle.

5. the improvement structure of radiation fan according to claim 1 is characterized in that, this diversion division be located at this blade up and down between.

6. the improvement structure of radiation fan according to claim 1 is characterized in that, this diversion division is located at the root edge position of this blade.

7. the improvement structure of radiation fan according to claim 1 is characterized in that, this diversion division be located at this blade near root edge or apical margin position.

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