CN202402358U

CN202402358U - Fan with fluid flow guide mechanism

Info

Publication number: CN202402358U
Application number: CN2011204748244U
Authority: CN
Inventors: 苏彦文
Original assignee: Enermax Technology Corp
Current assignee: Enermax Technology Corp
Priority date: 2011-11-24
Filing date: 2011-11-24
Publication date: 2012-08-29
Anticipated expiration: 2021-11-24

Abstract

The utility model provides a fan with a fluid flow guide mechanism. The fan comprises a fan frame structure and a vane wheel, wherein an accommodating space, an air inlet and an air outlet are formed on the fan frame structure; the fan frame structure comprises a surrounding plate; more than two flow guide structural members are arranged on the surrounding plate; an opening is formed on any flow guide structural member and faces the direction of the air inlet; the vane wheel is arranged in the accommodating space of the fan frame structure, so that when the vane wheel runs, air flow produced by fan blades can be guided to the outer side surface, namely a leeward, of a bearing table through air flows from the flow guide structural members; and therefore, the air flow can effectively cover a heating source to be swayed, and the air volume and the air pressure of the whole fan can be increased.

Description

Fan with fluid flow guiding mechanism

Technical field

The relevant a kind of radiation fan of the utility model refers to a kind of fan with fluid flow guiding mechanism that is used for the electronic heating source especially.

Background technique

In recent years, because the intergrated circuit in the electronic equipment is done littler and littler, but arithmetic speed is more and more fast; And the running of heating source refers to the running of central processing unit (CPU) (CPU) especially, and it must produce high temperature when reaching high-effect running; This high temperature can cause CPU when running speed slow down even problem such as deadlock; In order to address the above problem, generally can on the CPU of computer-internal, radiation fan be set, to strengthen its heat dissipation potential; But; Central authorities have motor because of radiation fan; And its below district is approaching overlapping with cpu chip, and the blowing efficient that can occur in the centre rotational area is clear, promptly produces the problem in leeward district; Can't reach and produce effective heat radiation function, even unavoidable CPU makes problems such as computer corruption because of producing high temperature.

Such as the novel patent publication No. M287881 of TaiWan, China announcement, it mainly comprises two above deflectors, said deflector is connected by at least one rib each other; Said deflector extends with direction of a curve and arranges according to non-concentric ring-shaped; And define opening, and can install blast fan, said blast fan has two with upper blade; Blade end is not a unanimity with respect to the spacing of said deflector, so as to reducing the secondary flow phenomenon between blade and the deflector; Though increase air inflow to promote radiating effect by spacing, produced another problem, that is easy to generate windage exactly and causes wind to cut sound; That is to say also and can't effectively promote blast; And also produce noise, therefore above-mentioned existing technology problem really belongs to the common urgent problem of research and development innovator.

The model utility content

In view of this, the main order of the utility model is to provide a kind of fan with fluid flow guiding mechanism, uses of arranging in pairs or groups each other of the coaming plate of this fan through having air guide and impeller, and the air quantity of increase radiation fan, and can reduce the back pressure generation of radiation fan.

For achieving the above object, the utility model provides a kind of fan with fluid flow guiding mechanism, comprises fan frame structure and impeller; This fan frame structure is provided with the containing space that supplies this impeller to install; And be formed with intake grill and exhaust outlet at this fan frame structure, and this fan frame structure comprises coaming plate, and this coaming plate is provided with two above air guides; Each this air guide is provided with opening, and this opening is towards the direction setting of this intake grill.

Further, arbitrary said air guide comprises the convex sheet that extends said coaming plate outside, and said opening is formed on the upper area of this convex sheet.

Further, arbitrary said air guide comprises the inner concave arc shape sheet of recessed said coaming plate, and said opening is formed on the lower area of this concave arc shape sheet.

Further, the face of deciding what is right and what is wrong of said convex sheet and said concave arc shape sheet all is half funnel shape.

Further, be provided with contra bevel at said opening periphery.

Further, said fan frame structure also comprises base and lid, and this base is connected with this lid through said coaming plate, and said exhaust outlet is formed at this base, and said intake grill is formed at this lid.

Further, said base comprises two with upper clasp, and said coaming plate is provided with two with catching groove up and down, and this clasp connects descending catching groove.

Further, said lid comprises two with upper clasp, and said coaming plate is provided with and goes up catching groove more than two, and this clasp connects going up catching groove.

Further, said fan frame structure also comprises lid, and this lid is connected on the said coaming plate, and said exhaust outlet is formed at this coaming plate, and said intake grill is formed at this lid.

Further, the said air guide of a part comprises the convex sheet that extends said coaming plate outside, and said opening is formed on the upper area of this convex sheet; This air guide of another part comprises the inner concave arc shape sheet of recessed this coaming plate, and this opening is formed on the lower area of this concave arc shape sheet.

Compared to existing technology, the utility model also has following effect, through two above air guides on the coaming plate of fan frame structure, reduces internal turbulence, backflow and generation of noise when making impeller operation.

Description of drawings

Fig. 1 is first embodiment's of the utility model a combination schematic perspective view;

Fig. 2 is first embodiment's of the utility model a perspective exploded view;

Fig. 3 is the base of the utility model and the combination schematic representation of coaming plate;

Fig. 4 is first embodiment's of the utility model a combination cross-sectional schematic;

Fig. 5 is applied to the user mode schematic representation of heating source for the fan of the utility model;

Fig. 6 is the local enlarged diagram of Fig. 5;

Fig. 7 is the local cross-sectional schematic of amplifying after second embodiment's the combination of the utility model;

Fig. 8 is the local cross-sectional schematic of amplifying after the 3rd embodiment's the combination of the utility model;

Fig. 9 is the 4th embodiment's of the utility model a combination schematic perspective view;

Figure 10 is the 5th embodiment's of the utility model a combination schematic perspective view.

Description of reference numerals

1,1a, 1b, 1c, 1d fan frame structure

11 bases, 111 bearing tables

112 ribs 113 are accepted post

114 clasps, 115 hollow posts

Catching groove on 12 coaming plates 121

122,122 ' air guide 1221,1221 ' opening

1222 convex sheets, 1222 ' concave arc shape sheet

1223,123 times catching grooves of 1223 ' contra bevel

13 lids, 131 clasps

132 socket posts, 14 containing spaces

15 intake grills, 16 exhaust outlets

2 impellers

21 wheel hubs, 211 axles

22 flabellums, 3 heating sources

Embodiment

Detailed description of relevant the utility model and technology contents, with the conjunction with figs. explanation as follows, yet appended accompanying drawing is not to be used to limit to the utility model only as illustrative purposes.

See also Fig. 1 to Fig. 4, the utility model provides a kind of fan with fluid flow guiding mechanism, and in order to assist heating source 3 heat radiations, it mainly comprises fan frame structure 1 and impeller 2.

Fan frame structure 1 is provided with the containing space 14 of supplying with impeller 2; And be formed with intake grill 15 and exhaust outlet 16 (as shown in Figure 4) in fan frame structure 1; The fan frame structure 1 of present embodiment comprises base 11, coaming plate 12 and lid 13, and lid 13 is connected with base 11 through coaming plate 12.And this fan frame structure 1 can be materials such as plastics or metal and processes.

Base 11 comprises the above rib of bearing table 111, two 112, accept post 113 more than two, two with upper clasp 114 and hollow posts 115, and wherein bearing table 111 is connected and is positioned at the centre position of base 11 with housing through each rib 112; In addition, bearing table 111 is used for putting the motor part, and hollow posts 115 extends upward from the central position of bearing table 111.In addition, respectively accept the four corner corners that post 113 is molded over base 11 respectively, each clasp 114 lays respectively at any two adjacent accepting between the post 113.

Lid 13 comprises two, and each socket post 132 is positioned at four corner corners of lid 13 with upper clasp 131 and two above socket posts 132, and each clasp 131 lays respectively between any two adjacent socket posts 132.Each socket post 132 is accepted post 113 mutual cross-under and is combined with said.

The coaming plate 12 of present embodiment is a thin rounded flakes; Its inside is formed with containing space 14; Catching groove 121 and two are with catching groove 123 up and down on the upper and lower fringe region of coaming plate 12 is respectively equipped with more than two; Catching groove 121 supplies each clasp 131 button of said lid 13 to be solidly connected on each, and each time catching groove 123 supplies each clasp 114 button of said base 11 to be solidly connected.In addition; Zone line at coaming plate 12 is provided with two above air guides 122; Each air guide 122 comprises convex sheet 1222 that extends coaming plate 12 outsides and the opening 1221 that is formed on convex sheet 1222 upper areas, and the direction of each said intake grill 15 of opening 1221 courts sets.The face of the deciding what is right and what is wrong shape of each convex sheet 1222 roughly is one and half funnel shapes.In addition, be provided with contra bevel 1223, be easy to flow in each opening 1221 so as to pilot gas in coaming plate 12 inboards of each opening 1221 periphery.

Impeller 2 can be plastic materials or metallic material is processed; The impeller 2 of present embodiment is an aial flow impeller; It mainly comprises wheel hub 21 and two above flabellums 22, and each flabellum 22 is that the center outwards is radial extension with wheel hub 21, and wherein the central position of wheel hub 21 is connected with axle 211; This axle 211 is settled corresponding to described hollow posts 115 through bearing, so that impeller 2 is installed in the containing space 14 of fan frame structure 1.

See also Fig. 5 and shown in Figure 6; Can the fan of the utility model be provided in heating source 3 tops during use; Driving through the motor (not shown) makes impeller 2 produce rotation; Gas around will driving is like this discharged from intake grill 15 entering containing spaces 14 and from exhaust outlet 16, and the gas in coaming plate 12 outsides will be guided from each opening 1221 of each air guide 122 and get in the containing space 14, and increase air output and air output.

Principle according to Bernoulli's law (Bernoulli ' s Theory) (flow velocity and pressure are inversely proportional to); It is said: in fluid (being air or other cooled gas on embodiment); Flow velocity is fluid (referring to the gas that impeller 2 drives) faster, and because of the fluid density step-down, the pressure fluid slower with respect to flow velocity is little; Promptly produce negative air pressure, then can produce the suction fluid that flow velocity is slower (this is the air or the cooled gas in coaming plate 12 outsides) suck flow velocity faster fluid with the right pressure difference of equilibrium phase; So the air-flow that the utility model improves output gas pressure and desire will be released is complete and seen off by exhaust outlet 16 uniformly; Improve integral heat sink efficient, reduce noise, and the direction setting of each opening 1221 through each air guide 122 can be reduced problems such as airflow reflux, turbulent flow.

See also Fig. 7; Fan for second embodiment of the utility model; The main distinction of itself and previous embodiment is: the fan frame structure 1a of present embodiment, its each air guide 122 ' comprise the inner concave arc shape sheet 1222 ' of recessed coaming plate 12 and are formed on the opening 1221 ' of the lower area of concave arc shape sheet 1222 '.And each opening 1221 ' sets towards the direction of said intake grill 15.The face of the deciding what is right and what is wrong shape of each concave arc shape sheet 1222 ' roughly is one and half funnel shapes.In addition, be provided with contra bevel 1223 ', be easy to flow in each opening 1221 ' so as to pilot gas in coaming plate 12 inboards of each opening 1221 ' periphery.

See also 8 figure; Fan for the 3rd embodiment of the utility model; The main distinction of itself and previous embodiment is: the fan frame structure 1b of present embodiment comprises coaming plate 12 and lid 13, through being opened in catching groove 121 on each of coaming plate 12 and being molded over each solid connection of clasp 131 buttons of lid 13.Each air guide 122 comprises convex sheet 1222 that extends coaming plate 12 outsides and the opening 1221 that is formed on convex sheet 1222 upper areas, and the direction of each said intake grill 15 of opening 1221 courts sets.And be provided with contra bevel 1223 in coaming plate 12 inboards of each opening 1221 periphery.

See also 9 figure; Fan for the 4th embodiment of the utility model; The main distinction of itself and previous embodiment is: the fan frame structure 1c of present embodiment; Its different side at coaming plate 12 is respectively equipped with the air guide 122,122 ' of different types, and wherein a part of air guide 122 comprises convex sheet 1222 that extends coaming plate 12 outsides and the opening 1221 that is formed on the upper area of convex sheet 1222; The air guide 122 ' of another part comprises the concave arc shape sheet 1222 ' of recessed coaming plate 12 inside and is formed on the opening 1221 ' of the lower area of concave arc shape sheet 1222 '.

See also Figure 10; Fan for the 5th embodiment of the utility model; The main distinction of itself and previous embodiment is: the fan frame structure 1d of present embodiment, and it is respectively equipped with the air guide 122,122 ' of different types on coaming plate 12, and air guide 122 is configured between any two air guides 122 '; Each air guide 122,122 ' structure kenel and above-mentioned close, therefore no longer repeat specification.

The utlity model has the fan of fluid flow guiding mechanism and have the following advantages: 1. the scope of dwindling leeward district effectively; 2. can reduce and reflux and the turbulent flow generation; 3. can increase the blast of exhaust outlet; 4. the noise that produces in the time of reducing the impeller running; 5. the air-flow that radiation fan is produced can be by sufficient utilization.

The above is merely the specifying of preferred embodiment of the utility model, is not the protection domain in order to limitation the utility model, and other any equivalent transformation all should belong to the application's claim scope.

Claims

1. one kind has the machine-processed fan of fluid flow guiding, it is characterized in that this fan comprises:

Impeller; And

Fan frame structure is provided with the containing space that supplies this impeller to install, and is formed with intake grill and exhaust outlet at this fan frame structure; This fan frame structure comprises coaming plate; This coaming plate is provided with two above air guides, and each this air guide is provided with opening, and this opening is towards the direction setting of this intake grill.

2. the fan with fluid flow guiding mechanism as claimed in claim 1 is characterized in that, arbitrary said air guide comprises the convex sheet that extends said coaming plate outside, and said opening is formed on the upper area of this convex sheet.

3. the fan with fluid flow guiding mechanism as claimed in claim 1 is characterized in that, arbitrary said air guide comprises the inner concave arc shape sheet of recessed said coaming plate, and said opening is formed on the lower area of this concave arc shape sheet.

4. the fan with fluid flow guiding mechanism as claimed in claim 2 is characterized in that the face of deciding what is right and what is wrong of said convex sheet is half funnel shape.

5. like claim 2 or 3 described fans, it is characterized in that, be provided with contra bevel at said opening periphery with fluid flow guiding mechanism.

6. the fan with fluid flow guiding mechanism as claimed in claim 1; It is characterized in that said fan frame structure also comprises base and lid, this base is connected with this lid through said coaming plate; Said exhaust outlet is formed at this base, and said intake grill is formed at this lid.

7. the fan with fluid flow guiding mechanism as claimed in claim 6 is characterized in that said base comprises two with upper clasp, and said coaming plate is provided with two with catching groove up and down, and this clasp connects descending catching groove.

8. the fan with fluid flow guiding mechanism as claimed in claim 6 is characterized in that said lid comprises two with upper clasp, and said coaming plate is provided with and goes up catching groove more than two, and this clasp connects going up catching groove.

9. the fan with fluid flow guiding mechanism as claimed in claim 1 is characterized in that said fan frame structure also comprises lid, and this lid is connected on the said coaming plate, and said exhaust outlet is formed at this coaming plate, and said intake grill is formed at this lid.

10. the fan with fluid flow guiding mechanism as claimed in claim 1 is characterized in that, the said air guide of a part comprises the convex sheet that extends said coaming plate outside, and said opening is formed on the upper area of this convex sheet; This air guide of another part comprises the inner concave arc shape sheet of recessed this coaming plate, and this opening is formed on the lower area of this concave arc shape sheet.

11. the fan with fluid flow guiding mechanism as claimed in claim 3 is characterized in that the face of deciding what is right and what is wrong of said concave arc shape sheet is half funnel shape.