CN100445572C - Electronic apparatus and fan thereof - Google Patents
Electronic apparatus and fan thereof Download PDFInfo
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- CN100445572C CN100445572C CNB2004100117971A CN200410011797A CN100445572C CN 100445572 C CN100445572 C CN 100445572C CN B2004100117971 A CNB2004100117971 A CN B2004100117971A CN 200410011797 A CN200410011797 A CN 200410011797A CN 100445572 C CN100445572 C CN 100445572C
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- fan
- expanding part
- fan frame
- containing space
- thermal source
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Abstract
The present invention relates to a fan which is suitable for an electronic device. The electronic device is provided with holding space and a plurality of heat sources. The present invention is characterized in that the fan is arranged in the holding space and is provided with a fan frame; the shape of the fan frame is adjusted according to the shape of the holding space; a flow passage of the fan forms an outer expanding part according to space positions of the holding space and the heat source, which leads the heat radiation of the electronic device to be optimized.
Description
Technical field
The electronic equipment that the present invention relates to a kind of fan and have this fan particularly relates to a kind of fan that can change the runner profile according to electronic equipment endogenous pyrogen position.
Background technique
General axial fan when improving the air quantity of fan characteristic, except improving flabellum, in the improvement of fan aspect the frame, mostly with strengthen out, the area of wind inlet, increase the discrepancy air quantity.
Because present fan mostly adopts the design of square fan frame, shown in Figure 1A, when the expansion fan goes out the tapered slope 11 of inlet air face, then can be because of the influence of fan frame 10, and make the amplitude of improvement limited, and can't make design optimization at the flow field.
In addition, when in general system fan being set, big city is right against thermal source with fan center, can make fan reach greatest benefit by this.It is sectional drawing along a-a among Figure 1A for Figure 1B, and shows the flow field scope that fan produced of Figure 1A; In Figure 1B, label w represents the flow field scope, and label 13 is represented fan center's line, label 1a representative system thermal source, by among Figure 1B as can be known, have now when fan being arranged in the system 1, fan center's line 13 is right against thermal source 1a.
Yet, in fact with regard to fan with regard to the application of internal system, sometimes tend to because problem is put in the position of other part of internal system, or has the multiple thermal source of dispersion in the system simultaneously, and cause the fan thermal source that can't align, or can only make fan aim at main heat source 1a and must sacrifice heat radiation other thermals source 1b.In this case, system manufacturer tends to so adopts more large scale or the heat radiation of higher rotating speed fan, but thus, not only can make cost increase, on the market of stressing low profit, miniaturization now, run in the opposite direction beyond doubt, high still more rotating speed or large scale fan also have the problem that noise increases.
In order to address the above problem, in No. the 6386843rd, U. S. Patent, it proposes a kind of fan, can take into account the heat radiation of a plurality of thermals source; With reference to figure 2, fan 20 also becomes an expanding part 22 in a lateral profile except forming the inclined-plane 21 on the fan frame, increase opening by this, makes radiating effect more; Yet, the fan frame that its shortcoming is this fan still with square as base of design, therefore when the configuration space in the system limited to some extent, it also can't be suitable for.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of fan of also taking into account radiating requirements applicable to different accommodation spaces simultaneously.
Another object of the present invention is to provide a kind of electronic equipment, and its fan inside can be taken into account a plurality of thermals source in the device simultaneously.
For achieving the above object, the invention provides a kind of electronic equipment, comprise a housing, an a plurality of thermal source and fan that is arranged in the housing, fan has a fan frame, the fan frame can dispel the heat fan to secondary heat source having expanding part respectively near on the position of above-mentioned thermal source.Again, said fans is an axial flow fan.
The present invention provides a kind of electronic equipment in addition, above-mentioned electronic equipment has a housing, a fan and at least one thermal source, and has a containing space in the housing in addition, wherein, fan is arranged in the containing space, and fan has a fan frame, the fan frame has an exhaust outlet and one first expanding part, first expanding part is positioned at the air-out oral-lateral, and the angle that extends out of first expanding part forms according to the position of containing space and thermal source, so that the heat radiation optimization.
The present invention provides a kind of electronic equipment in addition, above-mentioned electronic equipment has a housing, at least two thermals source and a fan, wherein, described at least two thermals source are arranged in this housing, fan is arranged in this housing, and have a fan frame, this fan frame has at least one expanding part respectively near the position of these thermals source.
The present invention provides a kind of electronic equipment in addition, above-mentioned electronic equipment has a housing, a fan and at least one thermal source, and has a containing space in the housing in addition, and it is characterized in that: fan is arranged in the containing space, wherein fan has a fan frame, and the profile of frame forms according to the shape of containing space.
The present invention provides a kind of fan that is applicable to electronic equipment in addition, above-mentioned electronic equipment has a containing space and a plurality of thermal source, fan comprises a fan frame and a flabellum disposed thereon, its middle fan frame has an exhaust outlet and one first expanding part, first expanding part is positioned at the air-out oral-lateral, and the angle that extends out of first expanding part forms according to the position of containing space and each thermal source.
In a preferred embodiment, the profile of above-mentioned fan frame is done suitable moulding according to containing space, utilizes the space to fill part.Again, the fan frame has a wind inlet and one second expanding part in addition, and second expanding part is positioned at the inlet air oral-lateral, and the angle that extends out of second expanding part forms according to the position of containing space, to increase the gas flow that fan blows out.
In a preferred embodiment, the fan frame of fan has the section of a plurality of differing tilt angles, and the shape of each section and adjacent section and not identical entirely with respect to the axial height of fan.Be positioned at the expanding part of outlet end and entry end, also in response to the radiating requirements of system, be divided into a plurality of sections, and each section is not identical entirely with the length of close flabellum end points away from the flabellum end points, the height of fan frame both sides sidewall also can be different, can change the flow field scope of fan frame by this, and applicable to the system that has under the different heat sources situation.
In a preferred embodiment, the angle of inclination of first expanding part and second expanding part and extend out the degree of depth can be different, the wind inlet of fan and exhaust outlet sectional area and shape can be different; Secondly wind inlet and exhaust outlet can be not parallel, and the end face profile of fan frame is circle, rectangular, ellipse, fan-shaped or other irregular shape.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Figure 1A is the stereogram of existing fan frame;
Figure 1B is for to represent along the sectional drawing of the line a-a among Figure 1A, and label 12 is the flow field scope, and label 1a, 1b are thermal source;
Fig. 2 is the plan view of disclosed fan in No. the 6386843rd, U. S. Patent;
Fig. 3 A is the flow field schematic representation of the electronic equipment of first embodiment of the invention;
Fig. 3 B is the stereogram of the fan frame of Fig. 3 A;
Fig. 3 C is the sectional drawing along Fig. 3 B center line b-b;
Fig. 4 A is the flow field schematic representation of the electronic equipment of second embodiment of the invention;
Fig. 4 B is the plan view of Fig. 4 A middle fan frame;
Fig. 4 C is the sectional drawing along Fig. 4 B center line c-c;
Fig. 5 is the plan view of third embodiment of the invention fan;
Fig. 6 is another enforcement sample attitude of third embodiment of the invention fan frame;
Fig. 7 A is the flow field schematic representation of the electronic equipment of fourth embodiment of the invention;
Fig. 7 B is the plan view of fan among Fig. 7 A;
Fig. 7 C is the sectional drawing along Fig. 7 B center line d-d;
Fig. 7 D is the sectional drawing along Fig. 7 B center line e-e;
Fig. 7 E is another enforcement sample attitude of fourth embodiment of the invention fan frame;
Fig. 7 F is the sectional drawing along Fig. 7 E center line f-f;
Fig. 8 A is the plan view of fifth embodiment of the invention fan frame;
Fig. 8 B is the schematic representation of an electronic equipment, and the fan shown in Fig. 8 A can be set in it.
The simple symbol explanation
1a, 1b, 2b, 2c, 3b, 3c, 4b, 4c, 5a, 5b, 5c thermal source
2,3,4,5 electronic equipments
2a, 3a, 4a housing
2d, 3d, 4d, 5a containing space
10 fan frames
11 inclined-planes
12 flow field scopes
13 center lines
20 fans
21 inclined-planes
22 expanding parts
30,40,50,60,70,70 ', 80 fans
31,41,51,61,71,81 fan frames
31b, 41c, 71c exhaust outlet
31c, 41d, 71d wind inlet
31d, 31e, 41a, 41b, 51a expanding part
61a, 71a, 71b, 81a, 81a expanding part
32,42 stator coils
33,43 sleeves
34,44 rotating shafts
35,45,52,72 flabellums
Distance between p, D thermal source
The w flow field
D1, d2 extend out the degree of depth
Embodiment
First embodiment
Fig. 3 A is the flow field schematic representation of the electronic equipment of first embodiment of the invention, and Fig. 3 B～3C is the schematic representation of first embodiment's fan, wherein, and Fig. 3 C is the sectional drawing along b-b among Fig. 3 B, and for simplicity of illustration, Fig. 3 B～3C omits stator and flabellum, and only fan frame is partly.
As shown in Figure 3A, electronic equipment 2 comprises a housing 2a and a plurality of thermal source 2b, 2c, wherein thermal source 2b, 2c and fan 30 all are arranged among the housing 2a, because the relation of arrangements of components, thermal source 2b, 2c disperse each other, and electronic equipment 2 only tool one be positioned at the containing space 2d that housing 2a edge can be provided with radiation fan.In order to satisfy the demand of heat radiation in limited space, fan 30 of the present invention sees through the design of fan frame 31 profiles, changes the scope of flow field w.
Shown in Fig. 3 A～3C, the fan 30 of present embodiment is an axial flow fan, its fan frame 31 is rectangle, have an exhaust outlet 31b, a wind inlet 31c, an expanding part 31d, an expanding part 31e and a sleeve 33, stator coil 32 is set on the sleeve 33 of fan frame 31 central authorities, and flabellum 35 sees through a rotating shaft 34 and is connected with sleeve 33.And fan frame 31 has expanding part 31d in the side of exhaust outlet 31b, and the angle that extends out of expanding part 31d is adjusted according to the relative position of containing space 2d and thermal source 2b, 2c.Therefore relatively behind Figure 1B and Fig. 3 A as can be known, for two thermals source with uniform distances p, the fan 30 of present embodiment strengthens the flow field scope w of its generation, and reaches the existing radiating effect that can't reach owing to be provided with expanding part 31d.
Please refer to Fig. 3 A and Fig. 3 D, expanding part 31e forms near on the end face of exhaust outlet 31c, and is positioned at same side with expanding part 31d, and the angle that extends out of expanding part is adjusted according to the position of containing space 2d, to increase gas flow, adds the radiating effect of strong wind fan.
In addition, it should be noted in Fig. 3 B, be formed with positioning hole (not label) respectively on four corners of fan frame, be positioned in the electronic equipment 2 to make things convenient for the user will fan frame 31, but be not limited to this, the position of positioning hole can change according to circumstances.For simplicity of illustration, in the fan frame of subsequent embodiment, positioning hole is omitted again.
Second embodiment
Fig. 4 A is the flow field schematic representation of the electronic equipment of second embodiment of the invention, and Fig. 4 B is the plan view of Fig. 4 A middle fan frame, and Fig. 4 C is the sectional drawing along c-c among Fig. 4 B, and for simplicity of illustration, and Fig. 4 B～4C omits stator and flabellum, and only fan frame is partly.
Shown in Fig. 4 A, electronic equipment 3 comprises a housing 3a, a main thermal source 3c, a less important thermal source 3d and a fan 40, wherein thermal source 3b, 3c and fan 40 all are arranged among the housing 3a, and the position of fan 40 faces main thermal source 3b, as can be known, (D＞p) is so fan 40 has the bigger expanding part of the angle of extending out because the space D of thermal source 3b, 3c is bigger behind comparison diagram 3A and Fig. 4 A, make the flow field scope w of its generation bigger, and in the electronic equipment 3 that can be applicable to.
Shown in Fig. 4 B～4C, the fan frame 41 and first embodiment of present embodiment fan 40 are similar, and fan frame 40 is rectangle, and form an expanding part 41a and an expanding part 41b at air-out oral-lateral (41c) and inlet air oral-lateral (41d) respectively; Differently with first embodiment be in extending out angle θ 1 and extending out extending out angle θ 2 and extending out depth d 2 and inequality of depth d 1 and expanding part 41b in: expanding part 41a.Wherein, extend out the degree of depth shown in Fig. 4 C, for from exhaust outlet 41c or wind inlet 41d to the distance the expanding part lower edge, and the wall of outer enlarging-angle degree expanding part and the angle between the vertical walls.
Refer again to Fig. 4 A, expanding part 41a forms according to the different angles that extends out with expanding part 41b, therefore, the sectional area of wind inlet 41c and exhaust outlet 41d and shape are also inequality, the shaft core position of flabellum is not also in the central position of fanning frame, so the fan frame of fan can be made elasticizing, design optimization according to the position and the size of thermal source in the electronic equipment and containing space, and reaches the demand of efficiently radiates heat.
The 3rd embodiment
Fig. 5 is the plan view of third embodiment of the invention fan, and in the present embodiment, fan 50 has a fan frame 51 and a flabellum 52, and has an expanding part 51a in the fan frame 51.
Present embodiment is different with the foregoing description be in: the profile of fan frame is trapezoidal, and expanding part forms along exhaust outlet and wind inlet periphery, make the shape of exhaust outlet and wind inlet approximately slightly fan-shaped, can under the situation of the relative position of taking into account system's endogenous pyrogen and containing space, the branch source of heat release in the system be dispelled the heat by this.
Fig. 6 is the 3rd embodiment's distortion, and shown fan frame forms expanding part 61a respectively in both sides, can change the flow field scope of fan frame by this, with applicable to the system that has under the different heat sources situation.
The 4th embodiment
Fig. 7 A is the flow field schematic representation of the electronic equipment of fourth embodiment of the invention, and Fig. 7 B is the plan view of fan among Fig. 7 A, and Fig. 7 C is the sectional drawing along d-d among Fig. 7 B, and Fig. 7 D is the sectional drawing along e-e among Fig. 7 B.
Shown in Fig. 7 A, electronic equipment 4 comprises a housing 4a and a plurality of thermal source 4b, 4c, wherein thermal source 4b, 4c and fan 70 all are arranged among the housing 4a, because the relation of arrangements of components, thermal source 2b, 2c disperse each other, and electronic equipment 4 only tool one be positioned at the containing space 4d that housing 4a edge can be provided with radiation fan.In order to satisfy the demand of heat radiation in limited space, fan frame 71 wind inlets and the exhaust outlet of fan 70 of the present invention are not parallel, and can change flow field direction, to adjust the scope of flow field w
Shown in Fig. 7 A～7D, the fan frame 71 of present embodiment fan 70 forms expanding part 71a in exhaust outlet 71c side, form expanding part 71b in wind inlet 71d side, different with the foregoing description is: fan frame 71 ovalizes, and expanding part and expanding part are according to the position of housing 4a endogenous pyrogen 4b, 4c and containing space 4d, what change expanding part extends out the angle and the degree of depth, can change the flow field scope of fan frame by this, and applicable to the system that has under the different heat sources situation.
Fig. 7 E is another enforcement sample attitude of fourth embodiment of the invention fan frame, and Fig. 7 F is the sectional drawing along Fig. 7 E center line f-f.Shown in Fig. 7 E and 7F, the fan frame 71 of present embodiment fan 70 has the section of a plurality of differing tilt angles, and the shape of each section and adjacent section and not identical entirely with respect to the axial height of fan, form expanding part 71a and 71b in exhaust outlet 71c side, expanding part 71a, 71b is also in response to the radiating requirements of system, be divided into a plurality of sections, and each section is not identical entirely with the length of close flabellum end points away from the flabellum end points, the sidewall height of each section of fan frame also can be different, can change the flow field scope of fan frame by this, and applicable to the system that has under the different heat sources situation.
The 5th embodiment as mentioned above, fan frame profile of the present invention can change according to circumstances, that is fan frame profile can be made design optimization according to the space in the system; With reference to figure 8A, 8B, Fig. 8 A is the plan view of fifth embodiment of the invention fan frame, and Fig. 8 B is the schematic representation of a system 5.
In Fig. 8 B, symbol 5a represents can be provided with in the system 5 containing space of the fan 80 shown in Fig. 8 A, it is irregular shape, by on the privileged site of the fan frame 81 of fan 80, forming expanding part 81a, the end face profile of fan frame 81 can be changed according to expanding part 81a, and then fan 80 can suitably be positioned among the containing space 4a, and fan 80 can be dispelled the heat simultaneously to thermal source 5b, 5c, 5d.
Will be appreciated that, containing space shown in Fig. 8 B only is an example, its profile can be circle, ellipse, rectangular, trapezoidal, fan-shaped, equilateral polygon, inequilateral polygonal or irregularly shaped etc., and shape can be corresponding circle, ellipse, rectangular, fan-shaped, polygonal or irregularly shaped outside the end face of fan frame.
Though the present invention discloses as above with preferred embodiment; yet it is not in order to limit the present invention; those skilled in the art can do a little change and retouching without departing from the spirit and scope of the present invention, thus protection scope of the present invention should with accompanying Claim the person of being defined be as the criterion.
Claims (15)
1. electronic equipment comprises:
One housing has a containing space;
At least one thermal source is arranged in this housing; And
One fan, be arranged in this containing space, wherein this fan has a fan frame, this fan frame has an exhaust outlet, a wind inlet and one first expanding part, this first expanding part is positioned at this air-out oral-lateral or this inlet air oral-lateral, and the angle that extends out of this first expanding part forms according to the position of this containing space and this thermal source, so that the air-flow that this fan running generated is contained whole thermals source.
2. electronic equipment comprises:
One housing;
At least two thermals source are arranged in this housing; And
One fan is arranged in this housing, and has a fan frame, and wherein this fan frame has at least one expanding part respectively near the position of these thermals source, and the angle that extends out of described at least one expanding part forms according to the position of this containing space and this thermal source.
3. fan is applicable at least one thermal source is dispelled the heat that this fan comprises:
One fan frame has a wind inlet, an exhaust outlet and one first expanding part, and this first expanding part is positioned at this air-out oral-lateral or this inlet air oral-lateral, and this first expanding part extend out angle according to being used for the containing space of this fan and the position of this thermal source forms; And
One flabellum is arranged on this fan frame.
4. fan as claimed in claim 3, wherein this fan frame also comprises one second expanding part, this second expanding part is positioned at this inlet air oral-lateral or this air-out oral-lateral with this first expanding part.
5. fan as claimed in claim 4, the wherein angle of inclination of this first expanding part and this second expanding part or extend out degree of depth difference.
6. fan as claimed in claim 4, wherein this first expanding part or this second expanding part are the multi-region section, each section away from the flabellum end points with not identical entirely near the length of flabellum end points.
7. fan as claimed in claim 3, wherein this wind inlet and this exhaust outlet sectional area difference, shape difference or not parallel.
8. fan as claimed in claim 3, wherein this fan frame is placed in the containing space of an electronic equipment, and the profile of this fan frame is done suitable moulding according to this containing space.
9. fan as claimed in claim 3, wherein this fan frame is distinguished into a plurality of sections, each section and adjacent section axially on highly different or have a different angle of inclination.
10. fan as claimed in claim 3, the profile that wherein should fan frame is circle, ellipse, equilateral polygon, trapezoidal, fan-shaped or irregularly shaped.
11. an electronic equipment has a housing, a fan, and has a containing space in this housing in addition, it is characterized in that:
This fan is arranged in this containing space, and wherein this fan has a fan frame,
The angle that extends out of first expanding part of this fan frame forms according to the position of the thermal source of this containing space and this electronic equipment.
12. electronic equipment as claimed in claim 11, wherein this fan frame is distinguished into a plurality of sections, each section and adjacent section axially on highly different or have a different angle of inclination.
13. a fan comprises:
One fan frame has an exhaust outlet, a wind inlet, one first expanding part and one second expanding part, and this first expanding part is positioned at this air-out oral-lateral, and second expanding part is positioned at this inlet air oral-lateral; And a flabellum, be arranged on this fan frame;
Wherein the angle of inclination of this first expanding part and this second expanding part, extend out degree of depth difference, this first expanding part extend out angle according to being used for the containing space of this fan and the position of thermal source forms.
14. a fan is applicable at least one thermal source is dispelled the heat that this fan comprises:
One fan frame has an exhaust outlet, a wind inlet and an expanding part, and this expanding part is positioned at this air-out oral-lateral, and this expanding part extend out angle according to being used for the containing space of this fan and the position of this thermal source forms; And
One flabellum is arranged on this fan frame;
Wherein this wind inlet and this exhaust outlet sectional area, shape difference.
15. a fan comprises:
One fan frame has an exhaust outlet, one first expanding part, a wind inlet and one second expanding part, and this first expanding part is positioned at this air-out oral-lateral, and this second expanding part is positioned at this inlet air oral-lateral; And
One flabellum is arranged on this fan frame;
Wherein the angle that extends out of this first expanding part forms according to the containing space of this fan and the position of thermal source, and the profile of this fan frame is circular, oval, non-tetragonal equilateral polygon, trapezoidal, fan-shaped or irregularly shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100117971A CN100445572C (en) | 2004-09-29 | 2004-09-29 | Electronic apparatus and fan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100117971A CN100445572C (en) | 2004-09-29 | 2004-09-29 | Electronic apparatus and fan thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1755143A CN1755143A (en) | 2006-04-05 |
| CN100445572C true CN100445572C (en) | 2008-12-24 |
Family
ID=36688617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100117971A Expired - Fee Related CN100445572C (en) | 2004-09-29 | 2004-09-29 | Electronic apparatus and fan thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100445572C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6386843B1 (en) * | 1999-12-09 | 2002-05-14 | Nidec Corporation | Housing for fan units, and electrical apparatus using a fan unit |
| CN2567379Y (en) * | 2002-08-01 | 2003-08-20 | 林三原 | Improved base of radiation fan |
-
2004
- 2004-09-29 CN CNB2004100117971A patent/CN100445572C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6386843B1 (en) * | 1999-12-09 | 2002-05-14 | Nidec Corporation | Housing for fan units, and electrical apparatus using a fan unit |
| CN2567379Y (en) * | 2002-08-01 | 2003-08-20 | 林三原 | Improved base of radiation fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1755143A (en) | 2006-04-05 |
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