CN202789719U

CN202789719U - Heat dissipation fan

Info

Publication number: CN202789719U
Application number: CN 201220464518
Authority: CN
Inventors: 杨尚智; 刘思贤
Original assignee: XIEXI MOTOR CO Ltd
Current assignee: XIEXI MOTOR CO Ltd
Priority date: 2012-09-12
Filing date: 2012-09-12
Publication date: 2013-03-13
Anticipated expiration: 2022-09-12

Abstract

The utility model provides a heat dissipation fan. A movable blade moving space is formed inside a fan frame, and a positioning seat is positioned at the bottom of the movable blade moving space; a stator is arranged above the positioning seat; a shell seat of a rotor body is sleeved on the stator; a mandrel of the shell seat is pivoted in the stator in a rotatable manner; a plurality of fixing slots axially extending are formed in the peripheral surface of the shell seat, and a plurality of clamping hooks which are axially protruded out of the side wall of a wheel shell of a blade wheel extend into the fixing slots and are clamped and fixed; and therefore, the blade wheel and the rotor body are integrated into a whole. By the structure, due to matching of the fixing slots and the clamping hooks, a user can select different styles of blade wheels to be matched with the rotor body according to a required heat dissipation function, so that the generality of the heat dissipation fan can be improved; and a market demand can be met.

Description

Radiation fan

Technical field

The utility model relates to a kind of radiation fan, particularly replaces the radiation fan that multiple pattern flabellum uses for a kind of removable group.

Background technique

When host computer turns round, its internal electron wafer tends to produce many heat energy, because computer equipment is constantly upgraded now, so that the arithmetic speed of electronic wafer is quite high, and institute's distribute heat can't be got rid of via natural convection air, therefore, just need by the heat radiation of radiation fan active assistance main frame, avoid main frame inside to work as machine because of the overheated computer that causes.

Take desktop computer as the example explanation, the fan pattern of installing in the main frame has many styles formula, according to the flabellum size, quantity or moulding and different radiating effects can be provided, it mainly can be divided into supply power supply heat transmission, the header board inlet air is used, the side plate inlet air with and rear plate air-out use etc., wherein, flabellum with standard number is suitable as the power supply unit heat transmission, need have than multiple-blade for the flabellum of header board inlet air and to lower the temperature so that a large amount of cold wind in outside are sent in the main frame, need have the pressurize effect reducing the flabellum crushing for the flabellum of side plate inlet air, then only need less blade with the minimizing noise for the flabellum of rear plate air-out; No matter be the motor that any radiation fan all comprises an electrical connection computer switch, in case start computer, motor namely can provide a rotating power to flabellum because of energising, take away the heat energy that electronic component produces so that main frame can constantly rotate by flabellum.

Yet, the past on the market for the flabellum of difference in functionality all can make one can with the fan base of corresponding assembling, it is too much to cause producing assembly, and causes the manufacturers produce cost to increase.

The model utility content

Main purpose of the present utility model is to provide a kind of radiation fan, and uncommon whereby model utility is improved the problem that present user can't use with the flabellum that difference in functionality is changed in same fan base collocation.

For reaching aforementioned purpose, the utility model radiation fan comprises:

One fan frame, inner formation one movable vane activity space, and in the movable vane activity space, be provided with a positioning seat;

One stator is located on the positioning seat of fan frame;

One rotor body, comprise the shell block and that annular permanent magnnet is arranged in and be located at the axle at shell block center, rotor body is with being hubbed in the stator that axle can be rotated, and this shell block is sheathed on the stator outside, and this shell block outer circumferential face forms a plurality of axially extended fixed grooves; And

One impeller, it comprises a hub, a plurality of blade and a plurality of snap fit that forms in the wheel shell side wall that forms in the hub outer circumferential face, described snap fit is axially from the hub bottom and protrudes out, this impeller is sheathed on the shell block outside of rotor body with this hub, and each snap fit stretches into respectively in the corresponding fixed groove of this rotor body and buckle is fixed, and impeller and rotor body are combined into one.

Described radiation fan, wherein, the shell block two ends of this rotor body form respectively a mating face and a stop surface, and the width of the fixed groove of this shell block outer circumferential face is phased down by mating face to stop surface;

The hub of this impeller comprises the only plate that supports that an annular body and is located at annular body one end, and described snap fit is located at the sidewall of this annular body with arranging in the form of a ring and is axially and protrudes out;

This annular body of this impeller is sheathed on the shell block outer circumferential face of rotor body and support ends the mating face that plate is resisted against shell block with this.

Described radiation fan, wherein, the fixed groove of this shell block is positioned at the stop surface place and has a buckle breach; The snap fit of this impeller has a hook part corresponding to the buckle breach away from annular body place.

Described radiation fan, wherein, the plate that support to end of this impeller has a material reducing hole, and described material reducing hole is positioned at supports the internal diameter that ends plate centre and this material reducing hole less than the internal diameter of annular body.

Can learn via the above, the utility model radiation fan is to utilize the snap fit of impeller can corresponding stretch in the fixed groove of rotor body to connect and fix, and can be by the fast dismantling group, and same rotor body can sheathed multiple difference in functionality impeller use, and then be combined into the different radiation fan of several functions, allow the user select suitable impeller and rotor body winding according to radiating requirements, promote thus versatility of the present utility model more to accord with the demands of the market.

Description of drawings

Fig. 1 is in the preferred embodiment of the utility model radiation fan, is sheathed on the perspective exploded view on the shell block of rotor body with four kinds of impellers arbitrary;

Fig. 2 is the top perspective exploded view of the first preferred embodiment of the utility model radiation fan;

Fig. 3 be the utility model radiation fan the first preferred embodiment look up three-dimensional exploded view;

Fig. 4 is the three-dimensional combination figure of the first preferred embodiment of the utility model radiation fan;

Fig. 5 is the local face upwarding stereogram of the first preferred embodiment of the utility model radiation fan;

Fig. 6 is the three-dimensional exploded view that is formed with another preferred embodiment in material reducing hole on the impeller of the utility model radiation fan.

Description of reference numerals: 10-fans frame; 101-movable vane activity space; The 11-positioning seat; The 12-stator; The 20-rotor body; The 21-shell block; The 211-mating face; The 212-stop surface; The 22-fixed groove; 221-buckle breach; The 23-annular permanent magnnet; The 24-axle; The 30a-impeller; The 30b-impeller; The 30c-impeller; The 30d-impeller; The 31-hub; 311-annular body; 312-supports and ends plate; The 32-blade; The 33-snap fit; The 331-hook part; 34-material reducing hole.

Embodiment

As shown in Figure 1, in the preferred embodiment for the utility model radiation fan, be sheathed on the perspective exploded view on the shell block 21 of rotor body 20 with four kinds of

impeller

30a, 30b, 30c, 30d arbitrary, such as Fig. 1, Fig. 3 and shown in Figure 5, described radiation fan comprises a fan frame 10, a stator 12, a rotor body 20 and an

impeller

30a, 30b, 30c, 30d.

Such as Fig. 1, Fig. 2 and shown in Figure 3, these fan frame 10 inner formation one movable vane activity spaces 101, and in movable vane activity space 101, be provided with a positioning seat 11, this stator 12 is located on the positioning seat 11 of fan frame 10.

As shown in Figure 1 to Figure 3, this rotor body 20 comprises the axle 24 that the shell block 21 and that annular permanent magnnet 23 is arranged in is located at shell block 21 centers, this rotor body 20 is with axle 24 rotatable being hubbed in the stator 12, and this shell block 21 is sheathed on stator 12 outsides, and these shell block 21 outer circumferential faces form a plurality of axially extended fixed grooves 22.

As shown in Figure 1 to Figure 3, described

impeller

30a, 30b, 30c, 30d comprise a hub 31, a plurality of blade 32 that forms in hub 31 outer circumferential faces, and a plurality of snap fits 33 that form in hub 31 sidewalls, the hub 31 of this

impeller

30a, 30b, 30c, 30d comprises the only plate 312 that supports that an annular body 311 and is located at annular body 311 1 ends, and described snap fit 33 is located in the form of a ring the sidewall of this annular body 311 with arranging and is axially and protrudes out.

As shown in Figure 1 to Figure 3, the two ends of the shell block 21 of this rotor body 20 form respectively a mating face 211 and a stop surface 212, the width of the fixed groove 22 of these shell block 21 outer circumferential faces is phased down by mating face 211 to stop surface 212, and fixed groove 22 is positioned at stop surface 212 places and all has a buckle breach 221, and described snap fit 33 has a hook part 331 corresponding to buckle breach 221 away from annular body 311 places.

Such as Fig. 4 and shown in Figure 5, described

impeller

30a, 30b, 30c, 30d are sheathed on shell block 21 outer circumferential faces of rotor body 20 with the annular body 311 of its hub 31, described snap fit 33 can correspondence stretches in these rotor body 20 corresponding fixed grooves 22 and connects and fixes, and support to end the mating face 211 that plate 312 is resisted against shell block 21 with it, the arbitrary and rotor body 20 of described

impeller

30a, 30b, 30c, 30d is combined into one.By fixed groove 22 two side rakes that the 211 convergent effects to stop surface 212 produce from the mating face, will have that guiding snap fit 33 is easier to stretch into the fixing function of buckle in this fixed groove 22.

As shown in Figure 6, the supporting of described

impeller

30a, 30b, 30c, 30d ended plate 312 and still can further be comprised a material reducing hole 34, described material reducing hole 34 is positioned to ending plate 312 centres and its internal diameter internal diameter less than annular body 311, can reduce the overall weight of

impeller

30a, 30b, 30c, 30d by described material reducing hole 34.

Enforcement state about the utility model radiation fan, can consult as shown in Figure 4, each

impeller

30a, 30b, 30c, 30d can stretch in the rotor body 20 corresponding fixed grooves 22 by its snap fit 33, and be fastened on the buckle breach 221 that fixed groove 22 is arranged in stop surface 212 with described hook part 331 and fixed, when giving an external power supply, will drive rotor body 20 and

wheel rotor

30a, 30b, 30c, 30d so that radiating effect to be provided.

Take the main frame of desktop computer as the example explanation, host computer has the zone of at least four need heat radiations usually, for example: the power supply unit heat transmission, the header board inlet air is used, the side plate inlet air with and rear plate air-out use etc., the utility model radiation fan utilizes the snap fit of impeller can corresponding stretch in the fixed groove of rotor body and connects and fixes, and can be by the fast dismantling group, and utilize the impeller that same rotor body can sheathed multiple difference in functionality to use, and can be combined into the radiation fan of multiple difference in functionality, the more in the past better versatility of radiation fan is provided thus, allow the winding of arranging in pairs or groups of impeller that the user can select suitable function according to instantly radiating requirements and rotor body, and then more meet the demand in market and reduce the die sinking cost of manufacturer.

The above, only be to disclose preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, have in the technical field under any and know that usually the knowledgeable is in the scope that does not break away from the technical characteristics that the utility model proposes, utilize technology contents that the utility model discloses to do the local equivalent embodiment who changes or modify, all still belong in the scope of the utility model technical characteristics.

Claims

1. a radiation fan is characterized in that, comprises:

One stator is located on the positioning seat of fan frame;

2. radiation fan as claimed in claim 1 is characterized in that, the shell block two ends of this rotor body form respectively a mating face and a stop surface, and the width of the fixed groove of this shell block outer circumferential face is phased down by mating face to stop surface;

3. radiation fan as claimed in claim 2 is characterized in that, the fixed groove of this shell block is positioned at the stop surface place and has a buckle breach; The snap fit of this impeller has a hook part corresponding to the buckle breach away from annular body place.

4. radiation fan as claimed in claim 2 or claim 3 is characterized in that, the supporting of this impeller ended plate and had a material reducing hole, and described material reducing hole is positioned at supports the internal diameter that ends plate centre and this material reducing hole less than the internal diameter of annular body.