CN2616940Y

CN2616940Y - Radiating fan

Info

Publication number: CN2616940Y
Application number: CNU032384505U
Authority: CN
Inventors: 胡惠民; 彭明杰
Original assignee: Sanjiang Sci & Tech Co Ltd
Current assignee: Sanjiang Sci & Tech Co Ltd
Priority date: 2003-04-14
Filing date: 2003-04-14
Publication date: 2004-05-19
Anticipated expiration: 2013-04-14

Abstract

The utility model relates to an exhaust fan, which comprises an axis, a bearing, a rotor and a stator; wherein, the axis and the bearing are made of ceramic and arranged in the center of the rotor and the stator, the bearing is a hollow cylinder with a center hole, a concave is arranged on the bottom of the bearing and makes the axis traverse in the center hole and be positioned in the bearing by top-touching the concave; the magnetic center of the stator is arranged in the lower position of the magnetic center of the rotor and produces radial force and axial force to make the rotor operating steadily. The utility model has the advantages of low friction, low noise, low power consumption and high efficiency, high stability and long service life.

Description

Radiator fan

Technical field

The utility model relates to a kind of fan, refers to a kind of radiator fan that is used in the information communication product such as main frame especially.

Background technology

Progress along with science and technology, the quick upgrading of industry such as information, communication, make the running speed of machine component increase day by day, the heat that is produced also increases thereupon, therefore, in these appropriate positions that produces the machine component of high temperature, all be provided with radiator fan, in order to apace heat is distributed.

See also shown in Figure 1ly, it is motor 7 fragmentary cross-sectional views of known radiator fan, mainly includes axle center 70, bearing 71, rotor 72 and stator 73 and constitutes; Wherein this axle center 70 is made by metals such as stainless steels, and it is arranged at the center of this rotor 72, and the side of this rotor 72 is provided with magnetic stripe 74, and this bearing 71 is arranged at the center of this stator 73, and this stator 73 is provided with siliconized plate 75; This bearing 71 that is arranged on this stator 73 is passed in this axle center 70 that is fixedly arranged on this rotor 72, and is provided with scraper ring 76 in the upper end in this axle center 70, and the lower end is buckled 77 with the C type and is fastened, with the motor 7 that constitutes known radiator fan; After power supply input, can the generation induced magnetism line of force between this rotor 72 and this stator 73, and this motor 7 is turned round along with the induction in magnetic field.

Yet, this above-mentioned magnetic stripe 74 all is positioned at central authorities with the magnetic field center that this siliconized plate 75 is responded to, at same surface level place, only producing the induced magnetism line of force that has radially rotates for this rotor 72, and this rotor 72 and other weight all drop on the surface of contact of this axle center 70 and this bearing 71, so this rotor 72 can any cambered surface be offset on the circumference of this stator 73, so when motor 7 runnings, this rotor 72 has the phenomenon that off-centre is got rid of the rolling rotation, rotate and form the friction sagging and deflection of laying particular stress on of this rotor 72, the related inside diameter surface that makes near this bearing 71 of proper circle, very fast be worn down to oval or irregular surface, friction factor is risen, motor running has some setbacks.Produce mechanicalness noise, certainly, the life-span that product uses has also just shortened, and in addition, above-mentioned radiator fan more is not suitable for being used in those and often changes on the portable product of direction, angle, for example testing tool, notebook computer etc.

In summary, above-mentioned known radiator fan on reality is used, obviously has inconvenience and exists with defective, and need to do further to improve.

Thus, the utility model proposes a kind of reasonable in design and can effectively improve the radiator fan of above-mentioned defective.

The utility model content

Fundamental purpose of the present utility model, be to provide a kind of radiator fan, by the bearing of uniqueness, and the design of the magnetic field center of being responded between rotor and the stator, reach low friction, low noise, low power consumption, and high-level efficiency, high stability, the radiator fan of high life.

In order to achieve the above object, the utility model provides a kind of radiator fan, and it includes axle center, bearing, rotor and stator; Wherein this axle center and this bearing are all made by pottery, have anticorrosion, advantage such as anti-oxidant, wear-resistant; This axle center is a right cylinder, the one end is a protuberance, the other end then is arranged at this centre of rotor place, this bearing is a hollow circular cylinder, it is arranged at the center of this stator, and this bearing is provided with center pit, makes this axle center can pass this center pit and be arranged on this bearing, this bearing can be shared the weight of this rotor that bear in this axle center, and again with dustproof and leakproof wet goods effect; The magnetic force of this stator is centered close to the lower, magnetic force center of this rotor, to produce radial force and axial force, make this stator can stable rotation, make the utility model reach low friction, low noise, low power consumption, and high-level efficiency, high stability, the usefulness of high life.

The hollow circular cylinder that aforesaid bearing can be one of the forming also can be for being made up of the body and the discoid base of hollow cylindrical.

Wherein, the axle center is to be made by pottery.Bearing is to be made by pottery or alloy material.The annular wall top has bulge loop, and this bulge loop makes firm being placed in this annular wall of this bearing.

The contacted face in bearing and axle center can be the plane, also can concave surface be set in the center of the inside, bottom surface of bearing, this concave surface be positioned at center pit under, and an end in axle center is a protuberance, this protuberance is arranged on this concave surface.

The protuberance in above-mentioned axle center can be arc surface, also can be the protuberance of downward reduction.

The beneficial effects of the utility model are: by the improvement to known radiator fan, make it have low friction, low noise, low power consumption, high-level efficiency, high life, high stability, anticorrosion, dust protection, anti-leakage of oil, function such as anti-oxidant, wear-resistant.

In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet appended graphic only for reference with the explanation usefulness, be not to be used for the utility model is limited.

Description of drawings

Fig. 1 is the sectional view of known radiator fan;

Fig. 2 is the stereographic map of the utility model radiator fan;

Fig. 3 is the sectional view of the utility model radiator fan;

Fig. 4 is the sectional view of the utility model radiator fan first embodiment;

Fig. 5 is the sectional view of the utility model radiator fan second embodiment;

Fig. 6 is the sectional view of the utility model radiator fan the 3rd embodiment;

Fig. 7 is the sectional view of the utility model radiator fan the 4th embodiment;

Fig. 8 is the sectional view of the utility model radiator fan the 5th embodiment.

Wherein, description of reference numerals is as follows:

Motor 7 axle center 70 bearings, 71 rotors, 72 stators 73

Magnetic stripe 74 siliconized plates 75 scraper rings 76 C types buckle 77

Axle center

1,1 ', 1 ", 5

protuberances

10,10 ', 50

Bearing 2,2 ', 2 " end face 20,20 ' center pit 21,21 '

Bottom surface 22,22 ' concave surface 23,23 ' body 25 '

Base 26 ' plane 27 " rotor 3 motor shells 30 flabellums 31

Magnetic stripe 32 grooves 33 stators 4 chassis 40

Last coil former 41 lower coil framves 42 coils 43 siliconized plates 44 annular wall 45

Bulge loop 46

Embodiment

See also Fig. 2 and shown in Figure 3, the utility model provides a kind of radiator fan, includes axle center 1, bearing 2, rotor 3 and stator 4, wherein:

This axle center 1 is by the made right cylinder of pottery, and an end wherein is the protuberance 10 of arc surface.

This bearing 2 be by pottery or alloy material the integrally formed and hollow circular cylinder made, be provided with center pit 21 in the end face 20 of this

bearing

2, and 22 inside center place is provided with concave surface 23 in the bottom surface, this concave surface 23 be positioned at this center pit 21 under.

This rotor 3 is made up of motor shell 30, flabellum 31 and magnetic stripe 32; Wherein this motor shell 30 is the housing that Open Side Down, this flabellum 31 of its arranged outside, and this magnetic stripe 32 is set in the inboard, and have groove 33 in the center.

This stator 4 is made up of chassis 40, last coil former 41, lower coil frame 42, coil 43 and siliconized plate 44, wherein this chassis 40 is extended with annular wall 45 vertically upward at the place, centre, these annular wall 45 tops have bulge loop 46, upward coil former 41 and lower coil frame 42 are fixedly arranged on the outside of this annular wall 45, this siliconized plate 44 is arranged at the centre of coil former 41 and this lower coil frame 42 on this, the magnetic force of this siliconized plate 44 is centered close to the lower, magnetic force center of this magnetic stripe 32, and this coil 43 is surrounded on coil former 41 on this, this siliconized plate 44 and this lower coil frame 42.

One end in this axle center 1 is fixedly arranged in the groove 33 of this rotor 3, and has an end of the protuberance 10 of arc surface, passes this center pit 21, is arranged on this concave surface 23 with a contact, and the annular wall 45 of this stator 4 and this bulge loop 46 are for these bearing 2 ccontaining setting firmly; Form cooling fan structure of the present utility model by above-mentioned composition.

See also shown in Figure 4, it is the sectional view of the utility model first embodiment, this bearing 2 ' is made up of the body 25 ' and the discoid base 26 ' institute of hollow cylindrical, run through end face 20 ' and bottom surface 22 ' in the center of this body 25 ', form two center pits 21 ', and this base 26 ' is set in the below of this bottom surface 22 ', this base 26 ' has concave surface 23 ', this concave surface 21 ' be positioned at this center pit 21 ' under, make the protuberance 10 ' in this axle center 1 ' pass this two center pit 21 ', and be arranged on this concave surface 23 ' with a contact; By this bearing 2 ' that this body 25 ' and this base 26 ' two-piece type are assembled, it has the easy characteristics of shaping of this two center pit 21 ' and this concave surface 23 '.

See also Fig. 5 and shown in Figure 6, it is the sectional view of second embodiment of the present utility model and the 3rd embodiment, at bearing 2 " with axle center 1 " contacted go up be plane 27 ", this plane 27 " have an advantage of easy processing.

See also Fig. 7 and shown in Figure 8, it is the sectional view of the 4th embodiment of the present utility model and the 5th embodiment, and an end in this axle center 5 can be the protuberance 50 of downward reduction, and the protuberance 50 of this sharpening has the advantage of easy processing and manufacturing.

The magnetic force of the siliconized plate of this stator is centrally located in the lower, magnetic force center of the magnetic stripe of this rotor; so when producing magnetic force when energising this siliconized plate of conducting; the magnetic line of force that this siliconized plate and this magnetic stripe are responded to; the radial force of not merely having only vertical this axle center; the axial force that also has parallel this axle center; wherein this radial force is supplied the power of this stator rotation; and the weight of average whole this rotor of burden of this axial force; make this axle center reduce mass loading of the overwhelming majority and be contained in and rotate in this bearing bore diameter; utilize the protuberance in this axle center to be contacted with on this concave surface again with point; make this axle center shore toward anti-magnetic flotation line direction; it is unsettled to form whole this rotor, so this axle center just only need provide the function of location, therefore; the utility model is applicable to through regular meeting changes direction, on the portable product of angle.In addition, this bearing is hollow circular cylinder and is provided with center pit, makes this axle center only contact with the wall of this center pit, can reach low friction, low noise, low power consumption, and can have the effect of high-level efficiency, high stability.

This axle center and this bearing are all made by pottery, can have insulation, anticorrosion, anti-oxidant, abrasion performance, advantages such as high life.In addition, integrally formed bearing is assembled easily, and by two bearings that assemble, have the more or less freely characteristics of the processing of making, no matter and which kind of bearing, all have the concave surface that the chassis driving fit with this stator trims, this concave surface has the lubricating oil that prevents this axle center and oozes out, and prevents that dust is attached to the effect on this axle center and this bearing.

In sum, the utility model is with functions such as low friction, low noise, low power consumption, high-level efficiency, high life, high stability, anticorrosion, dust protection, anti-leakage of oil, anti-oxidant, abrasion performances.

But the above only is preferred embodiment of the present utility model, but not be used to limit claim of the present utility model, those of ordinary skill for described field, the design of utilization the utility model instructions and graphic content and the equivalent structure that method is done change, and all should be included in the scope of the present utility model.

Claims

1. radiator fan is characterized in that it comprises:

Axle center, described axle center are right cylinder;

Bearing, described bearing are hollow circular cylinder, are provided with center pit at the end face of described bearing, and described axle center is passed described center pit and is arranged in the described bearing;

Rotor, described rotor is made up of motor shell, flabellum and magnetic stripe, and wherein said motor shell is the housing that Open Side Down, the described flabellum of its arranged outside, its inboard is provided with described magnetic stripe, and has groove in the center, and described groove sets firmly described axle center; And

Stator, described stator are by the chassis, go up coil former, lower coil frame, and coil and siliconized plate are formed; Wherein said chassis is extended with annular wall vertically upward at the place, centre, described annular wall is ccontaining to set firmly described bearing, described upward coil former and lower coil frame are installed in the outside of described annular wall, described siliconized plate is arranged on described centre of going up coil former and described lower coil frame, the magnetic force centre bit of described siliconized plate is in the lower, magnetic force center of described magnetic stripe, and described coil encircling is gone up on coil former, described siliconized plate and the described lower coil frame in described.

2. radiator fan as claimed in claim 1 is characterized in that, the hollow circular cylinder that described bearing is one of the forming.

3. radiator fan as claimed in claim 1 is characterized in that, described bearing is to be made up of the body of hollow cylindrical and discoid base.

4. as the described radiator fan of claim 1～3, it is characterized in that described axle center is to be made by pottery.

5. as the described radiator fan of claim 1～3, it is characterized in that described bearing is to be made by pottery or alloy material.

6. as the described radiator fan of claim 1～3, it is characterized in that described annular wall top has bulge loop, what described bearing was firm is contained in the described annular wall.

7. as the described radiator fan of claim 1～3, it is characterized in that contacted of described bearing and described axle center are the plane.

8. as the described radiator fan of claim 1～3, it is characterized in that the center of the inside, bottom surface of described bearing is provided with concave surface, described concave surface be positioned at described center pit under, and an end in described axle center is a protuberance, described protuberance is positioned on the described concave surface.

9. radiator fan as claimed in claim 8 is characterized in that, the protuberance in described axle center is an arc surface.

10. radiator fan as claimed in claim 8 is characterized in that, an end in described axle center is the protuberance of cutting down downwards.