CN101060766A

CN101060766A - Thin heat radiation machine

Info

Publication number: CN101060766A
Application number: CN 200610072272
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: 2006-04-17
Filing date: 2006-04-17
Publication date: 2007-10-24

Abstract

The disclosed thin heat dispersion device comprises: a fan-wheel rotor arranged on base, at least two location elements with magnetic flux effect on base away the axis. This invention can avoid rotor flying out, draws the rotor to stop on optimal active angle and prevents on the active dead point to reduce the power consumption for activation.

Description

Thin heat radiation machine

Technical field

The present invention relates to thin heat radiation machine, refer to that especially a kind of magnetic attraction impeller rotor that utilizes is positioned at the best angle that activates when static, to reduce the thin heat radiation machine that activates power consumption.

Background technology

Though integrated circuit layout is precise treatment, complicated day by day, but the consumer for the hobby of product shape but be partial to gently, thin, short, little, particularly for the individual 3C electronic product of being particular about sophistication, comparatively speaking, the slimming of its internal heat dissipating unit development trend that is inevitable.

No. 84209577 patent announcement 265801 " composite construction of small-sized heat radiating fan motor " applied in Taiwan, a kind of exactly heat-sink unit constructed the specific design of slimming, and it is made up of a frame 1, a stator member 2 and a rotor component 3;

The inside of frame 1 is provided with substrate 11, and substrate 11 central authorities form column jecket 12, and column jecket 12 can be inserted for a central siphon 13, and flabellum 31 rotations of rotor component 3 can be supported in the hole of central siphon 13 central authorities;

Stator component 2 includes circuit board 21, silicon steel sheet 22 and coil 23, and wherein circuit board 21 is incorporated on the substrate 11, and with the adhesive cementation ring plate shape coil 23 and silicon steel sheet 22 is arranged on the circuit board 21;

Cards are fixed with magnet 32 in the flabellum 31 of rotor component 3, and flabellum 31 central authorities are provided with one 33, and this 33 can pass through the hole of central siphon 13 central authorities;

Because of circuit board 21 itself is combined with the IC control unit, and can be introduced into power supply and produces magnetic field, the induction that forms faces with the magnet 32 of flabellum 31 activates, to drive rotor component 3 rotations.

But, though the above-mentioned structure of commonly using is significantly reduced the integral thickness of radiator fan, but, this is fixed with coil and silicon steel sheet with the adhesive bonding mode because commonly using on the circuit board of structure, thereby be subject to coil and the silicon steel sheet gross thickness after overlapping, if the volume of radiator fan must be further microminiaturized, when meeting the demand of ultrathin electronic product, the gross thickness of then above-mentioned coil and silicon steel sheet will become one of radiator fan integral thickness microminiaturization and hinder greatly.

Summary of the invention

Main purpose of the present invention is to provide a kind of central siphon of pedestal to be provided with setting element more than at least two outward, and each setting element is the material of tool flux effects, and is distributed in the radially thin heat radiation machine of correspondence position of same circumference.

Technical scheme of the present invention:

A kind of thin heat radiation machine, it includes: an impeller rotor, periphery has extended several blades, and interior card is provided with magnet, and a rotating shaft is fixed by central authorities; One circuit board has the coil of corresponding magnet on it; One framework, its inner accommodation space has the pedestal of fixing circuit board, and the pedestal central projection is provided with central siphon, and the built-in bearing of central siphon is ccontaining, support the rotation of this impeller rotor rotating shaft; The side of the corresponding impeller rotor of pedestal is positioned at position beyond the central siphon and is provided with setting element more than at least two, and each setting element is necessary for the material with flux effects.

Wherein: two setting elements are set on the described pedestal, and two setting elements must be positioned at radially correspondence position.Three setting elements are set on the described pedestal, and three setting elements must be distributed on the same circumference.Described accommodation space one side is provided with air outlet, and is covered with a cover plate on the framework, and the corresponding impeller rotor of cover plate place is provided with air intake vent.

The invention has the advantages that:

Because each setting element can produce magnetic attraction to the respective magnets of impeller rotor, therefore, deviate from the time of can preventing the rotation of impeller rotor on the one hand, on the other hand when the impeller stationary rotor, can attract the impeller rotor to stop at the best angle that activates, and prevent to fall into the activation dead point, activate power consumption to reduce.

Description of drawings

Fig. 1, be perspective exploded view of the present invention.

Fig. 2, implement the cross-sectional schematic of kenel for first kind of the present invention.

Fig. 3, implement the schematic top plan view of kenel for first kind of the present invention.

Fig. 4, implement the schematic top plan view of kenel for second kind of the present invention.

Embodiment

For allowing above-mentioned purpose of the present invention, technical characterictic and advantage thereof, can become apparent, preferred embodiment of the present invention cited below particularly, and conjunction with figs. is described in detail as follows:

Referring to shown in Figure 1, first embodiment of the invention, this thin heat radiation machine mainly comprises: a framework 40, has accommodation space 41 in the framework 40, be disposed at wherein for an impeller rotor 50, framework 40 tops are covered with a cover plate 42, and cover plate 42 corresponding impeller rotors 50 places are provided with air intake vent 421, so when 50 rotations of impeller rotor, several blades 51 that its periphery extended can drive air-flow and suck from air intake vent 421, and the air outlet by accommodation space 41 1 sides blows out again, makes the electronic heating element radiating;

See also shown in Figure 2, accommodation space 41 bottoms are provided with the pedestal 43 of installing impeller rotor 50, pedestal 43 is provided with circuit board 46 and coil 47, and pedestal 43 central projections are provided with a central siphon 44, central siphon 44 is built-in with bearing 45, make impeller rotor 50 central rotating shafts 52 can pass bearing 45 central axis holes, and rotation under this axis hole supports, because of circuit board 46 itself is combined with the IC control unit, and can be introduced into power supply generation magnetic field, produce the induction activation with the magnet 53 of impeller rotor 50, to drive 50 rotations of impeller rotor;

Shown in Fig. 2,3, the side of pedestal 43 corresponding impeller rotors 50, be positioned at the outer positions of central siphon 44 and be provided with setting element 48 (being illustrated as two) more than at least two, this two setting element 48 is necessary for the material of tool flux effects, ferrous metal for example, and must be positioned at radially corresponding position, when making the magnet 53 generation magnetic attractions of setting element 48 and impeller rotor 50, do not cause the rotation disequilibrium of impeller rotor 50;

Therefore, the magnetic attraction that the magnet 53 of mat setting element 48 and impeller rotor 50 is produced, deviating from the time of to prevent 50 rotations of impeller rotor on the one hand, on the other hand when impeller rotor 50 is static, setting element 48 can attract the magnet 53 of impeller rotor 50 to stop at best activation angle position, can prevent simultaneously that it from falling into the activation dead point, activate power consumption to reduce it.

See also shown in Figure 4, the structure of second embodiment of the invention and first embodiment are basic identical, difference is: among second embodiment, the position that pedestal 43 is positioned at beyond the central siphon 44 is provided with three setting elements 49, these three setting elements 49 are necessary for the material with flux effects equally, and must be distributed on the same circumference, when making the magnet 53 generation magnetic attractions of this setting element 49 and corresponding impeller rotor 50, do not cause the rotation disequilibrium of impeller rotor 50.

In sum, because setting element design of the present invention, deviating from the time of to prevent the rotation of impeller rotor on the one hand, when the impeller stationary rotor, can attract the impeller rotor to stop at best activation angle on the other hand, and can prevent that it from falling into the activation dead point, moreover, setting element is the design more than at least two, can not influence the structural strength and stability of pedestal itself, can avoid central siphon distortion or fracture.

The above embodiment is preferred embodiment of the present invention only, is not in order to limit practical range of the present invention.All those who are familiar with this art all can make various equivalence and change and modify, but all should be covered by within the protection range that this patent claim defined.

Claims

1, a kind of thin heat radiation machine, it includes:

One impeller rotor, periphery has extended several blades, and interior card is provided with magnet, and a rotating shaft is fixed by central authorities;

One circuit board has the coil of corresponding magnet on it;

One framework, its inner accommodation space has the pedestal of fixing circuit board, and the pedestal central projection is provided with central siphon, and the built-in bearing of central siphon is ccontaining, support the rotation of this impeller rotor rotating shaft; The side of the corresponding impeller rotor of pedestal is positioned at position beyond the central siphon and is provided with setting element more than at least two, and each setting element is necessary for the material with flux effects.

2, thin heat radiation machine according to claim 1 is characterized in that: two setting elements are set on the described pedestal, and two setting elements must be positioned at radially correspondence position.

3, thin heat radiation machine according to claim 1 is characterized in that: three setting elements are set on the described pedestal, and three setting elements must be distributed on the same circumference.

4, thin heat radiation machine according to claim 1 is characterized in that: described accommodation space one side is provided with air outlet, and is covered with a cover plate on the framework, and the corresponding impeller rotor of cover plate place is provided with air intake vent.