CN200985889Y

CN200985889Y - Small-sized blowing fan

Info

Publication number: CN200985889Y
Application number: CN 200620134508
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: 2006-08-14
Filing date: 2006-08-14
Publication date: 2007-12-05
Anticipated expiration: 2016-08-14

Abstract

The utility model relates to a small-size blast fan. The blower fan includes: the fan blades extend outwards from the peripheral surface of the mandrel base and are arranged in a regular radial shape, and the maximum outer diameter of the fan blades is larger than that of the air inlet of the frame body; the magnet is located in the range covered by the fan blade when the fan blade rotates, the total height of the fan blade and the magnet is H, and the thickness of the fan blade is required to account for more than 30% of the total height of H. From this, the utility model discloses not only can reach the demand of miniaturization, slimming, also compromise the fever relieving demand of the air output and the wind pressure that the system corresponds radiator fan simultaneously to provide superior radiating effect.

Description

Small-sized blowing fan

Technical field

The utility model relates to a kind of small-sized blowing fan, and it is arranged in the slimming electronics equipment, is the microchip heat radiation of internal system.

Background technique

As shown in Figure 1, the blower fan of commonly using includes an impeller 10, and the periphery wall of impeller 10 inside is fixed with magnet 11, and the central position has a spindle seat 12 that is projection, and secure bond has a running shaft 13 on the spindle seat 12.

In addition, the outer circumferential face of impeller 10 is outward extended with disc 14 again, and disc 14 is provided with a plurality of flabellums 15 that are regular radial arrangement.Therefore, when the blower fan structure is rotated, can drive, attract the air-flow of impeller 10 tops, and blow out to side, be reached for electronics equipment cooling purpose by flabellum 15.

But along with the precise treatment of integrated circuit layout, complicated, particularly for slim, miniaturized electric subtense angle equipment, complex circuit design makes more that the temperature of its inner microchip is rapid climbs sharply, so, increased heat diffusion area with radiating fin merely in the past, or utilize heat conductive tube to transfer the hot mode of separating of heat energy, all be not enough to solve the problem that system thermal is now quickly accumulated.And, but the above-mentioned structure of commonly using blower fan has the difficulty of miniaturization, slimming aspect, makes it can't apply to slimming electronics equipment.

If the above-mentioned thickness of commonly using blower fan is directly dwindled, will directly have influence on the radiating effect of this fan.

Because in case the reduction of the integral thickness of impeller 10, then impeller 10 inside can must be restricted for the space of stator arrangement, make this blower fan can't select more powerful motor stator coil for use.Moreover, if reduction this commonly use the integral thickness of blower fan, also together with the area of time restriction flabellum 15, reduce the wind speed and the blast of fan.

Therefore, if will thoroughly solve the long-pending heat problem of slimming electronics equipment, and auxiliary its inner microchip is analgesic rapidly, to keep the normal operation of whole system equipment, the small-sized blowing fan of necessary a kind of brand-new kenel of active development is to meet the demand of integrated circuit layout precise treatment, slimming.

Summary of the invention

At the problems referred to above, main purpose of the present utility model is to provide a kind of small-sized blowing fan, and it can realize miniaturization, the slimming of blower fan, can take into account simultaneously the heat demand of separating of the air output of the corresponding radiation fan of system and blast.

For achieving the above object, a kind of small-sized blowing fan provided by the utility model, it is characterized in that including: a spindle seat, the central position of described spindle seat is fixed with running shaft, described spindle seat periphery is provided with a plurality of flabellums and magnet, described flabellum is by the outside projection of described spindle seat outer circumferential face and be regular radial arrangement, and its maximum outside diameter is greater than the intake grill of framework; Described magnet is positioned within the scope that can contain when described flabellum rotates, and the whole total height of described flabellum and described magnet is H, and the thickness of described flabellum must account for more than 30% of H total height.

In the above-mentioned the technical solution of the utility model, the thickness of described magnet must account for below 70% of H total height.

In the above the technical solution of the utility model, the maximum outside diameter of described flabellum is identical with the maximum outside diameter of described magnet.

In the above the technical solution of the utility model, the maximum outside diameter of described flabellum is greater than the maximum outside diameter of described magnet.

A kind of small-sized blowing fan that another technological scheme of the utility model is provided, it is characterized in that including: a spindle seat, the central position of described spindle seat is fixed with running shaft, the outer circumferential face of described spindle seat stretches out and is provided with disc, described disc one side bends out a plurality of flabellums that are the radial arrangement of rule with impact briquetting, described disc opposite side is fixed with magnet, described magnet is positioned within the scope that described disc can contain, the whole total height of described disc, flabellum and magnet is H, and the thickness of described flabellum must account for more than 30% of H total height.

Adopt technique scheme, although integrated circuit layout moves towards precise treatment, complicated or even slimming, but blower fan design of the present utility model is the demand of compliance with system equipment all, also take into account simultaneously the heat demand of separating of the air output of the corresponding radiation fan of system and blast, reached superior heat radiation purpose.

Description of drawings

Fig. 1 is a generalized section of commonly using blower fan;

Fig. 2 is first kind of embodiment's of the utility model a generalized section;

Fig. 3 is first kind of embodiment's of the utility model a decomposing schematic representation;

Fig. 4 is second kind of embodiment's of the utility model a generalized section;

Fig. 5 is the third embodiment's of the utility model a generalized section;

Fig. 6 is the third embodiment's of the utility model a decomposing schematic representation.

Embodiment

In order to describe structure of the present utility model and characteristics in detail, existing following preferred embodiment of act and conjunction with figs. are described as follows.

The utility model relates to a kind of small-sized blowing fan, and it is applied to the heat radiation of the microchip of slimming electronics equipment.

As Fig. 2, shown in Figure 3, be first kind of embodiment of the present utility model, it includes a spindle seat 30, the central position secure bond of spindle seat 30 has a running shaft 31, and the periphery of spindle seat 30 is provided with a plurality of flabellums 32 and magnet 33, flabellum 32 is by the outside projection of the outer circumferential face of spindle seat 30, and is the radial arrangement of rule, within the scope that can contain when 33 of magnet are positioned at flabellum 32 rotations.

And if the whole total height of flabellum 32 and magnet 33 is H, then the thickness of flabellum 32 must account for more than 30% of H total height, and the thickness of magnet 33 then must account for below 70% of H total height.

The utility model also includes a skeleton frame 22, skeleton frame 22 is provided with central siphon 23, central siphon 23 inside are provided with bearing 24, the running shaft 31 of blower fan can be worn pulls in the axis hole of bearing 24, the periphery of central siphon 23 is provided with iron plate 25 in addition, again be sequentially provided with circuit board 26 and coil 27 thereafter, by the excitation effect between coil 27 and the magnet 33, can order about flabellum 32 rotation and priming air-flows, 25 of iron plates have one to magnet 33 and adsorb spacing strength downwards, make the spinning movement of flabellum 32 more steady, can prevent that running shaft 31 is by deviating from the axis hole simultaneously.

In addition, skeleton frame 22 top devices have a framework 20, and the position of framework 20 corresponding flabellums 32 offers intake grill 21, and intake grill 21 must be less than the maximum outside diameter of flabellum 32.

First kind of embodiment of the utility model as shown in Figure 2, the maximum outside diameter of flabellum 32 is identical with the maximum outside diameter of magnet 33, whole profile is concordant design.In addition, second kind of embodiment that also can be as shown in Figure 4, the maximum outside diameter of flabellum 34 to increase the area of flabellum 34 contact air-flows, improves wind speed and blast greater than the maximum outside diameter of magnet 33.

As Fig. 5, shown in Figure 6, be the third embodiment of the utility model:

It includes a spindle seat 40 equally, the central position secure bond of spindle seat 40 has a running shaft 41, and the outer circumferential face of spindle seat 40 is outward extended with disc 42 again, a wherein side of disc 42 bends out a plurality of flabellums 43 with impact briquetting, and each flabellum 43 is the radial arrangement of rule, in addition, the opposite side of disc 42 is fixed with magnet 44, and magnet 44 is positioned within 42 scopes that can contain of disc.

And if the whole total height of disc 42, flabellum 43 and magnet 44 is H, then the thickness of flabellum 43 must account for more than 30% of H total height, and the thickness of magnet 44 then must account for below 70% of H total height.

In sum, small-sized blowing fan provided by the utility model except reaching miniaturization, purpose of thinness, applies to slimming electronics equipment, has more taken into account simultaneously the heat demand of separating of the air output of the corresponding radiation fan of system and blast.

The above only is preferred embodiment of the present utility model, and the equivalent structure that all application the utility model specifications, claims or accompanying drawing are done changes, and all should be included in the scope of patent protection of the present utility model.

Claims

1, a kind of small-sized blowing fan, it is characterized in that including: a spindle seat, the central position of described spindle seat is fixed with running shaft, described spindle seat periphery is provided with a plurality of flabellums and magnet, described flabellum is by the outside projection of described spindle seat outer circumferential face and be regular radial arrangement, and its maximum outside diameter is greater than the intake grill of framework; Described magnet is positioned within the scope that can contain when described flabellum rotates, and the whole total height of described flabellum and described magnet is H, and the thickness of described flabellum accounts for more than 30% of H total height.

2, small-sized blowing fan as claimed in claim 1 is characterized in that: the thickness of described magnet accounts for below 70% of H total height.

3, small-sized blowing fan as claimed in claim 1 is characterized in that: the maximum outside diameter of described flabellum is identical with the maximum outside diameter of described magnet.

4, small-sized blowing fan as claimed in claim 1 is characterized in that: the maximum outside diameter of described flabellum is greater than the maximum outside diameter of described magnet.

5, a kind of small-sized blowing fan, it is characterized in that including: a spindle seat, the central position of described spindle seat is fixed with running shaft, the outer circumferential face of described spindle seat stretches out and is provided with disc, described disc one side bends out a plurality of flabellums that are the radial arrangement of rule with impact briquetting, described disc opposite side is fixed with magnet, described magnet is positioned within the scope that described disc can contain, the whole total height of described disc, flabellum and magnet is H, and the thickness of described flabellum accounts for more than 30% of H total height.

6, small-sized blowing fan as claimed in claim 5 is characterized in that: the thickness of described magnet accounts for below 70% of H total height.