CN2311639Y

CN2311639Y - Radiating fan

Info

Publication number: CN2311639Y
Application number: CN 97222314
Authority: CN
Inventors: 陈建荣
Original assignee: Yen Sun Technology Corp
Current assignee: Yen Sun Technology Corp
Priority date: 1997-07-21
Filing date: 1997-07-21
Publication date: 1999-03-24
Anticipated expiration: 2007-07-21

Abstract

The utility model relates to a radiating fan, which is composed of a main body and a housing seat. Central columns of the main body and the housing seat support positioning rotation of a fan wheel, wherein, the central column of the main body can combined with a stator seat, and a magnetic field is produced through coils so that magnetic iron rings arranged on one end of the fan wheel are inducted. The main body and the housing seat are provided with air inlets and air outlets, wherein, the air inlet is larger than the air outlet; furthermore, a beginning gap between a blade and the air inlet is larger than the beginning gap between the blade and the air outlet; the gap of the air inlet gets gradually from small to large, and the gap of the air outlet is in equidistance.

Description

Heat-dissipating fan

The utility model relates to a kind of heat-dissipating fan.

Equipment such as computer, microprocessor easily produces high heat, thereby is provided with axial flow type heat elimination fan when work, the wind dispelling amount of the existing heat-dissipating fan of this kind is little, and therefore, radiating effect is not good.

The purpose of this utility model is to provide a kind of heat-dissipating fan, and it can produce bigger wind dispelling amount, to improve radiating effect.

The purpose of this utility model is achieved in that promptly provides a kind of heat-dissipating fan, and it comprises body, stator seat, impeller and shell block; Described body combines the housing that forms described heat-dissipating fan with described shell block, described body is provided with and supplies described stator seat combination and described impeller one end to be combined into the newel of position rotating, and described body is provided with wind inlet and exhaust outlet, and wind inlet is greater than exhaust outlet; Described stator seat includes circuit board and coil; Described impeller is by establishing several blades between two disks, described blade becomes to decide the equidistant row in angle and establishes, each installs a center hub for the bearing combination by centre bit two disks, described bearing is articulated in the newel of described body and shell block respectively, the disk that closes on described body makes impeller form the counterbore seat by the hole countersunk design, the wall of described counterbore seat is established a magnet ring, and described magnet ring is positioned at the coil outside of described stator seat, and the magnetic field of inductor coil; Have between the blade of described impeller and described body and the shell block and do not bump the less gap that connects, and first with described wind inlet near gap first greater than with described exhaust outlet near the gap, the gap of described wind inlet is by little gradually big, and it is equidistant that the gap of described exhaust outlet then becomes; Described shell block is supported impeller one end position rotating with a newel, described shell block is provided with wind inlet and exhaust outlet, and corresponding with the wind inlet and the exhaust outlet of described body, and wind inlet is greater than exhaust outlet, described blade and described wind inlet first near end first near end greater than with described exhaust outlet.

The utility model also provides a kind of heat-dissipating fan, and it comprises body, stator seat, impeller and shell block; Described body combines the housing that forms described heat-dissipating fan with described shell block, described body is provided with and supplies described stator seat combination and described impeller one end to be combined into the central siphon of position rotating, and described body is provided with wind inlet and exhaust outlet, and wind inlet is greater than exhaust outlet; Described stator seat includes circuit board and coil; Described impeller is established several blades by between two disks and the outside, described blade becomes to decide the equidistant row in angle and establishes, each installs an axle that is articulated in the bearing by centre bit two disks, described bearing is combined in respectively in the central siphon of described body and shell block, the disk that closes on described body makes impeller form the counterbore seat by the hole countersunk design, the wall of described counterbore seat is established a magnet ring, and described magnet ring is positioned at the coil outside of described stator seat, and the magnetic field of inductor coil; Be not bump the less gap that connects between the blade of described impeller and described body and the shell block, and first with described wind inlet near gap first greater than with described exhaust outlet near the gap, described shell block is supported described impeller one end position rotating with a central siphon, described shell block is provided with wind inlet and exhaust outlet, and it is corresponding with the wind inlet and the exhaust outlet of described body, and wind inlet is greater than exhaust outlet, described blade and described wind inlet first near end first near end greater than with described exhaust outlet.

The advantage of the utility model device is, can produce bigger air quantity and blast, has better radiating effect.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described, wherein:

Fig. 1 is an exploded perspective view of the present utility model;

Fig. 2 is a combination front view of the present utility model;

Fig. 3 is a 3-3 line sectional drawing among Fig. 2;

Fig. 4 is a 4-4 line sectional drawing among Fig. 2;

Fig. 5 is second an embodiment's of the present utility model sectional drawing;

See also shown in Figure 1ly, the utility model is made of members such as body 1, stator seat 2, impeller 3, shell blocks 4.

This body 1 can combine with shell block 4, to form the housing of a heat-dissipating fan, can hold into stator seat 2 and impeller 3 in it, this body 1 is established a newel 11, and it can be nested with for stator seat 2 and bearing 34, in order to support impeller 3 rotations, for there being preferable driving to send effect, this body 1 is provided with wind inlet 12 and exhaust outlet 13, and wind inlet 12 is greater than exhaust outlet 13, and the blade 32 of impeller 3 has big gap with the first of wind inlet 12 near wall, and first near the wall gap greater than blade 32 and exhaust outlet 13.

This stator seat 2 includes circuit board 21 and coil 22, and can make coil base produce magnetic field by ABAP Adapter, and this stator seat 2 can be fixed on the newel 11 of body 1, in order to impeller 3 is responded to.

This impeller 3 is long running roller shape, establish support disk 31 by two ends, between two disks 31, be provided with several blades 32, it is equidistant that blade 32 can become, the equal angles ring is established, one center hub 33 is respectively arranged on two disks 31, can be nested with for bearing 34 by two center hubs 33, in order to support impeller 3 position rotating, the disk 31 of impeller 3 one ends forms the counterbore design, make this impeller 3 be formed with a counterbore seat 35, the wall of counterbore seat 35 is fixed with a magnet ring 36, and it can be ferro-gum, permanent magnet etc., magnetic field induction by magnet ring 36 can be produced with the coil 22 of stator seat 2 rotates in order to drive impeller 3; Do not design for not bumping connect approaching between the blade of impeller 3 and the body 1.

This shell block 4 can combine with body 1, and be nested with for a bearing 34 with a central shaft 41, in order to support impeller 3 position rotating, this shell block 4 is provided with and body 1 corresponding wind inlet 42 and exhaust outlet 43, and wind inlet 42 is greater than exhaust outlet 43, the blade 32 and the first of wind inlet 42 of impeller 3 have by little and big gap near wall, and blade 32 becomes equidistant with the wall gap of exhaust outlet 43.

See also Fig. 2, combination situations of the present utility model shown in 3, utilize shell block 4 and the body 1 common impeller 3 of supporting to rotate, after these impeller 3 combinations, can be by the coil 22 (as shown in Figure 4) of the magnet ring 36 corresponding stator seats 2 of impeller 3, therefore, magnetic field from stator seat 2 can drive impeller 3 rotations, and when impeller 3 rotates, because blade 32 and wind inlet 12, the gap a of 42 first approaching end is greater than blade 32 and

exhaust outlet

13,43 gap b, and gap a is by little and big, it is equidistantly constant that gap b becomes, therefore, air can produce the suction and the discharge of set direction, and because wind inlet 12,42 greater than

exhaust outlet

13,43, therefore, can reach the effect that increases air compartment and supercharging.

See also second embodiment of the present utility model shown in Figure 5, establish the central siphon 14 of hollow by body 1, central siphon 14 external diameters can supply stator seat 2 combinations, and central siphon 14 internal diameters can be in conjunction with bearing 34, establish central siphon 44 by shell block 4, two support disk 31 to establish drive-connecting shaft 37, establish bearing 34 in the

central siphon

14,44 by body 1, shell block 4, make impeller 3 position rotating, and can establish blade 32 by between two the disks 31 and outside, so, blade 32 can drive air flows, forms thermolysis.

The centrifugal force of the existing centrifugal fan of the utility model combination and the multilayer flabellum of cross flow fan, and, make impeller can produce bigger air quantity and blast with the design of wind inlet greater than exhaust outlet.

Claims

1. a heat-dissipating fan is characterized in that, it comprises body, stator seat, impeller and shell block; Described body combines the housing that forms described heat-dissipating fan with described shell block, described body is provided with and supplies described stator seat combination and described impeller one end to be combined into the newel of position rotating, and described body is provided with wind inlet and exhaust outlet, and wind inlet is greater than exhaust outlet; Described stator seat includes circuit board and coil; Described impeller is by establishing several blades between two disks, described blade becomes to decide the equidistant row in angle and establishes, each installs a center hub for the bearing combination by centre bit two disks, described bearing is articulated in the newel of described body and shell block respectively, the disk that closes on described body makes impeller form the counterbore seat by the hole countersunk design, the wall of described counterbore seat is established a magnet ring, and described magnet ring is positioned at the coil outside of described stator seat, and the magnetic field of inductor coil; Have between the blade of described impeller and described body and the shell block and do not bump the less gap that connects, and first with described wind inlet near gap first greater than with described exhaust outlet near the gap, the gap of described wind inlet is by little gradually big, and it is equidistant that the gap of described exhaust outlet then becomes; Described shell block is supported impeller one end position rotating with a newel, described shell block is provided with wind inlet and exhaust outlet, and corresponding with the wind inlet and the exhaust outlet of described body, and wind inlet is greater than exhaust outlet, described blade and described wind inlet first near end first near end greater than with described exhaust outlet.

2. a heat-dissipating fan is characterized in that, it comprises body, stator seat, impeller and shell block; Described body combines the housing that forms described heat-dissipating fan with described shell block, described body is provided with and supplies described stator seat combination and described impeller one end to be combined into the central siphon of position rotating, and described body is provided with wind inlet and exhaust outlet, and wind inlet is greater than exhaust outlet; Described stator seat includes circuit board and coil; Described impeller is established several blades by between two disks and the outside, described blade becomes to decide the equidistant row in angle and establishes, each installs an axle that is articulated in the bearing by centre bit two disks, described bearing is combined in respectively in the central siphon of described body and shell block, the disk that closes on described body makes impeller form the counterbore seat by the hole countersunk design, the wall of described counterbore seat is established a magnet ring, and described magnet ring is positioned at the coil outside of described stator seat, and the magnetic field of inductor coil; Be not bump the less gap that connects between the blade of described impeller and described body and the shell block, and first with described wind inlet near gap first greater than with described exhaust outlet near the gap, described shell block is supported described impeller one end position rotating with a central siphon, described shell block is provided with wind inlet and exhaust outlet, and it is corresponding with the wind inlet and the exhaust outlet of described body, and wind inlet is greater than exhaust outlet, described blade and described wind inlet first near end first near end greater than with described exhaust outlet.